Help & Reference Guide

Everything you need to get the most out of MX-Logbook, plus a quick reference for common maintenance codes and regulations.

Frequently asked questions

How do I generate my first entry?+

Select your entry type at the top, fill in the aircraft info (tail number, make/model), then describe the work you did in plain language in the big text box. Click Generate draft entry. That's it.

You don't need perfect language or FAA terminology. Say it the way you'd tell a coworker. The AI handles the formatting.

The microphone keeps asking for permission every time I open the app+

On iPhone (Safari/PWA): iOS resets microphone permissions each time you close and reopen the app. This is an Apple restriction we cannot override. To minimize the prompts, go to iPhone Settings → Apps → Safari → Microphone and set it to Allow. This grants access for all websites but stops the repeated prompts.

On Android or desktop Chrome: Click Allow once when prompted and the browser will remember your choice permanently. If you accidentally clicked Deny, click the lock icon in the address bar and reset the microphone permission to Allow.

What is the difference between Shop and Shop Pro?+

Shop ($299/mo) gives your team up to 5 individual logins, shared AOG sessions, entry attribution, and the admin dashboard. Built for smaller maintenance operations.

Shop Pro ($599/mo) increases the seat count to 10 mechanics and adds work order export, entry history search, and priority support. Built for busier shops that need more people and better reporting tools.

How do role changes work for team members?+

Admins can change any team member's role from the Team Admin page. Find the member in the Team Members list and use the role dropdown to select a new role.

Role changes take effect the next time that user loads the app. If you need the change to apply immediately, ask the user to log out and back in.

How does the AOG running report work?+

Select AOG Report as your entry type. Each time you generate an entry, an Add to running report button appears. Click it to append that entry to the running report with a timestamp and your initials.

The aircraft info appears once at the top. Entries stack chronologically below it. When the job is done, click Close report — it stamps the closure time and copies the full report to your clipboard automatically.

The report saves to your device between sessions, so you can close the app and pick up exactly where you left off.

How do I switch between local time and UTC?+

Once you have entries in the running report, a Convert to UTC button appears in the report header. Click it and every timestamp in the entire report — headers and body text — converts automatically. The button flips to Convert to Local so you can toggle back at any time.

Your timezone is detected automatically from your device. You don't need to enter anything.

The AI keeps mishearing my words. What do I do?+

Two things help:

1. The built-in aviation glossary already corrects the most common mishearings automatically. Terms like ETOPS, FADEC, TCAS, and PIREP are recognized even if the microphone transcribes them phonetically.

2. Go to My Account > Glossary and add your own terms. Format is ABBR=Full term, one per line. Custom terms get added to both the glossary and the phonetic correction layer.

Where are my entries stored? Are they secure?+

Entries in the Aircraft Log are stored on your device only in your browser's local storage. They are never sent to our servers. They are automatically deleted after 90 days.

Entry history in your My Account dashboard is stored in our secure database and associated with your account. It is only accessible by you when logged in.

Can I edit the generated draft before copying it?+

Yes. The generated draft is a fully editable text area. Click anywhere in it and type to make corrections. You can also use the mic button in the draft header to speak edits directly into the draft.

What happens if I generate the same entry type twice?+

If you already have a draft visible and generate again with new notes, the tool enters consolidation mode. Instead of replacing the existing draft, it takes both the existing draft and your new notes and produces one clean, merged document with no redundancy.

This applies to all entry types except AOG Report, which always appends to the running report.

To start fresh, click Clear to wipe the current draft first.

I hit my daily limit. What now?+

You can purchase extra generation packs — 50 generations for $1.99 or 200 for $4.99. These are one-time purchases, not subscriptions. The credits are added immediately after checkout and draw down before your daily limit kicks in the following day.

Daily limits reset at midnight. Hard cap is 200 per day regardless of purchased packs.

Is this an official FAA-approved tool?+

No. MX-Logbook is a documentation assistant, not a certified FAA product. Every generated entry is clearly marked as a draft. The certifying technician is solely responsible for reviewing, verifying, and signing all maintenance records per 14 CFR Part 43. Never copy an entry into an official logbook without reviewing it for accuracy.

How do I cancel?+

Go to My Account > Overview and click Cancel subscription. You will be asked for a brief reason (this genuinely helps improve the tool), then redirected to the Stripe billing portal to complete the cancellation. No penalties, no fees, effective immediately.

How to generate your first entry

1

Select entry type

Choose from Maintenance, Squawk, RTS, AD Compliance, Inspection, Repair, or AOG Report (Pro). This tells the AI what kind of document to produce.

2

Enter aircraft info

Tail number, make/model, and TTSN are remembered for next time. Optional fields include parts used, reference numbers (MM, AD, SB), technician name, and date.

3

Describe the work

Type or speak in plain language. No FAA terminology required. "Replaced left magneto, ran engine, checked mag drop, all good" is enough to generate a compliant entry. Use the mic button or the sticky mic button at the bottom left of the screen.

4

Generate and review

Click Generate draft entry. Review the output — it is fully editable. Fix anything that looks off. The draft is never final until you copy it into your official logbook and sign it.

5

Copy or download

Copy to clipboard for pasting into your digital logbook, or download as a PDF-ready HTML file. Pro users can also add the entry to an AOG running report.

ATA chapter reference

ATA 100 chapters are the standard system for organizing aviation maintenance documentation. Reference these when writing maintenance entries, AD compliance records, and repair documentation.

ChapterSystemSubchapter examples
ATA 05Time Limits / Maintenance ChecksScheduled inspections, life limits, airworthiness limitations
ATA 06Dimensions and AreasZones, station diagrams, fuselage references
ATA 07Lifting and ShoringJack points, tow procedures, ground handling
ATA 08Leveling and WeighingAircraft weighing, center of gravity, ballast
ATA 09Towing and TaxiingTow bar attachment, towing limits
ATA 10Parking, Mooring, StorageTie-down, protective storage, preservation
ATA 11Placards and MarkingsRequired placards, exterior markings
ATA 12ServicingFueling, oil servicing, tire inflation, hydraulic servicing
ATA 20Standard Practices — AirframeTorque values, rigging, safety wire, corrosion control
ATA 21Air ConditioningPressurization, air cycle machine, distribution
ATA 22Auto FlightAutopilot, autothrottle, flight director
ATA 23CommunicationsVHF/HF radios, ACARS, interphone, ELT
ATA 24Electrical PowerAC/DC generation, battery, external power, IDG
ATA 25Equipment / FurnishingsSeats, galley, cargo compartments, emergency equipment
ATA 26Fire ProtectionDetection, extinguishing, overheat protection
ATA 27Flight ControlsAilerons, elevator, rudder, flaps, spoilers, trim
ATA 28FuelFuel tanks, fuel feed, dump, quantity indication
ATA 29Hydraulic PowerMain/auxiliary hydraulic systems, reservoirs, pumps
ATA 30Ice and Rain ProtectionWing anti-ice, probe heat, windshield heat, de-icing
ATA 31Indicating / Recording SystemsEICAS, ECAM, flight recorders, clocks
ATA 32Landing GearMain/nose gear, wheels, brakes, steering, doors
ATA 33LightsLanding lights, navigation lights, strobe, cabin
ATA 34NavigationILS, VOR, DME, GPS, TCAS, weather radar, ADIRS
ATA 35OxygenCrew oxygen, passenger oxygen, portable equipment
ATA 36PneumaticBleed air, ducting, isolation valves
ATA 38Water/WastePotable water, waste, lavatory systems
ATA 44Cabin SystemsCabin management, in-flight entertainment
ATA 45Central Maintenance SystemCMC, ACMS, fault codes, BITE
ATA 46Information SystemsAircraft data network, EFB, data loading
ATA 49Airborne Auxiliary PowerAPU, APU fuel, APU fire protection
ATA 51Structures — GeneralStructural repair, materials, processes
ATA 52DoorsPassenger doors, cargo doors, emergency exits
ATA 53FuselageFrames, skins, pressure bulkheads, floor structure
ATA 54Nacelles / PylonsEngine mounts, thrust reversers, nacelle structure
ATA 55StabilizersHorizontal stabilizer, vertical stabilizer, elevators
ATA 56WindowsWindshields, cabin windows, inspection windows
ATA 57WingsWing structure, control surfaces, winglets, access panels
ATA 61PropellersPropeller assembly, de-ice, pitch control
ATA 70Standard Practices — EnginesEngine removal/installation, borescope, test cell
ATA 71Power PlantEngine cowlings, mounts, firewall, drain masts
ATA 72Engine — Turbine/TurbopropFan, compressor, combustion, turbine, exhaust
ATA 73Engine Fuel and ControlFuel control, FADEC, flow divider, fuel nozzles
ATA 74IgnitionIgnition exciter, leads, igniters, magnetos (piston)
ATA 75Air — Engine BleedBleed air valves, cooling, anti-ice, pressure regulation
ATA 76Engine ControlsThrottle, mixture, prop controls, FADEC interface
ATA 77Engine IndicatingEGT, EPR, N1/N2, oil pressure/temp, fuel flow
ATA 78ExhaustExhaust nozzle, thrust reverser, noise suppressor
ATA 79OilOil tank, oil pump, oil filter, chip detector, cooling
ATA 80StartingStarter motor, starter valve, ignition sequence

14 CFR quick reference

Key Federal Aviation Regulations relevant to maintenance documentation. Reference these when writing logbook entries and return to service statements.

14 CFR Part 43 — Maintenance
  • 43.3 — Persons authorized to perform maintenance
  • 43.5 — Approval for return to service
  • 43.7 — Persons authorized to approve for RTS
  • 43.9 — Content, form, disposition of maintenance records
  • 43.11 — Content, form of records for inspections
  • 43.12 — Falsification of maintenance records
  • 43.13 — Performance rules — general
  • 43.15 — Performance rules — inspections
  • 43.16 — Airworthiness limitations
  • App. A — Major alterations, major repairs, preventive maintenance
  • App. B — Recording of major repairs and alterations
  • App. D — Scope and detail of items for annual/100-hr inspections
  • App. E — Altimeter system test and inspection
14 CFR Part 91 — Operations
  • 91.403 — Owner/operator responsibility for airworthiness
  • 91.405 — Maintenance required
  • 91.407 — Operation after maintenance
  • 91.409 — Inspections (annual, 100-hr, progressive)
  • 91.411 — Altimeter/static system tests
  • 91.413 — ATC transponder tests
  • 91.417 — Maintenance record requirements
  • 91.419 — Transfer of maintenance records
  • 91.421 — Reconstructing lost or destroyed records
14 CFR Part 65 — Certificates
  • 65.71 — Eligibility requirements: Mechanic
  • 65.75 — Knowledge requirements
  • 65.77 — Skill requirements
  • 65.81 — General privileges and limitations
  • 65.83 — Recent experience requirements
  • 65.85 — Airframe rating
  • 65.87 — Powerplant rating
  • 65.91 — Inspection authorization
  • 65.95 — IA privileges and limitations
43.9 Record Requirements
  • Description — description of work performed
  • Date — date of completion
  • Name — name of person performing work
  • Certificate — certificate number
  • Kind — kind of certificate
  • Signature — signature of person approving for RTS
Common Inspection Intervals
  • Annual — 12 calendar months (91.409a)
  • 100-hour — 100 flight hours (91.409b)
  • ELT — 12 months battery/cumulative use (91.207)
  • Transponder — 24 calendar months (91.413)
  • Altimeter/static — 24 calendar months (91.411)
  • VOR — 30 days IFR (91.171)
  • Pitot-static — 24 months (IFR)
Preventive Maintenance (Part 43 App. A)
  • Replenishing hydraulic fluid
  • Changing engine oil and filter
  • Servicing landing gear wheel bearings
  • Replacing defective safety wiring
  • Replacing bulbs, reflectors, lenses
  • Replacing tires
  • Replacing elastic shock absorber cords
  • Servicing battery and replacing battery box
  • Replacing prefabricated fuel lines
  • Cleaning fuel and oil strainers/filters

Standard entry language examples

Reference phrases commonly used in FAA-compliant maintenance entries. These are examples only — always tailor entries to the specific work performed.

Return to Service Statements
  • Aircraft returned to service in accordance with 14 CFR Part 43.
  • Aircraft found airworthy and returned to service.
  • Work performed in accordance with AMM Chapter [XX].
  • Aircraft inspected and approved for return to service per 14 CFR 43.9.
  • Repairs accomplished per SRM [section]. Aircraft returned to service.
Annual/100-hr Language
  • Annual inspection completed in accordance with 14 CFR 43 Appendix D.
  • 100-hour inspection performed per 14 CFR 91.409(b).
  • Aircraft inspected per approved inspection program.
  • All discrepancies noted and corrected prior to RTS.
  • No discrepancies noted. Aircraft approved for return to service.
AD Compliance Language
  • Complied with AD [number] by [method/action].
  • AD [number] does not apply to this aircraft (S/N [XXXXX]).
  • Recurring AD [number] — next compliance due at [hours/date].
  • One-time AD [number] — terminated. No further action required.
Parts Reference Language
  • P/N [XXXXX], S/N [XXXXX] installed.
  • Removed unserviceable P/N [XXXXX], S/N [XXXXX].
  • Part installed per AMM [chapter].
  • New/serviceable part installed. TSN/CSN: zero.
  • Overhauled component installed. TSO: zero. TTSN: [hours].