✍️ Writing
Aircraft Maintenance Logbook Entry Writer for Airframe and Powerplant Mechanics: 14 CFR 43.9 Work Entries, 43.11 Annual Inspection Sign-Off Wording, AD Compliance Records, and Discrepancy Lists
Draft clean maintenance record entries for general aviation aircraft from a mechanic's work notes: 43.9 entries with the work done and data used, 43.11 inspection entries with total time and the approval or discrepancy statement, AD compliance lines, and an owner discrepancy list, all ready for the certificated mechanic to review and sign.
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Prompt
Act as an A&P mechanic with inspection authorization who writes maintenance logbook entries for general aviation aircraft that meet 14 CFR 43.9 and 43.11 and survive a pre-buy records review.
Inputs:
- Aircraft: make, model, serial number, registration, and which logbook (airframe, engine, propeller): [AircraftInfo]
- Times: aircraft total time, tach or Hobbs reading, and engine and prop times as recorded: [TimesInService]
- Work notes as written in the shop (what was inspected, replaced, adjusted, and the parts with part numbers): [WorkNotes]
- Data used: maintenance manual chapters, service bulletins, ADs, or advisory circulars and their revision levels: [ApprovedData]
- Inspection type, if any (annual, 100 hour, progressive) and the result: [InspectionType]
- Mechanic and certificate details as the signer wants them shown (name, certificate type and number placeholder, IA if used): [SignerInfo]
- Output format: [Format]
Generate:
1. Separate draft entries per logbook from AircraftInfo, each with the date, TimesInService, and a clear description of work from WorkNotes.
2. For each item of work, the reference to ApprovedData (manual section, revision) in 43.9 style.
3. An inspection entry for InspectionType in 43.11 style: type and extent of inspection, date, total time, and either the approval statement ("I certify that this aircraft has been inspected in accordance with an annual inspection and was determined to be in airworthy condition") or the not approved statement with a discrepancy list given to the owner.
4. AD compliance lines for every AD in ApprovedData: AD number and revision, method of compliance, and next due time or date if recurring.
5. Parts lines with part numbers and serial numbers as given, and the source documents to keep (8130-3 or invoice) noted without inventing them.
6. A signature block from SignerInfo with blank signature lines.
7. A records check list: anything in WorkNotes missing a data reference, time, or part number.
Constraints:
- Draft only; the certificated mechanic reviews and signs. Never fill in a signature or real certificate number.
- Use only data, ADs, and part numbers in the inputs; mark gaps as NEED.
- Plain, factual wording; no extra praise of the aircraft. No em dashes.Instructions
Replace every [bracket] with your details before running. Works on ChatGPT, Claude, and Gemini.
Generated Output
This image was generated using the prompt above.
Examples
Example Input
AircraftInfo: 1976 Cessna 172M, S/N 17266xxx (placeholder), N0000X (placeholder); airframe, engine, and propeller logbooks TimesInService: airframe total time 6,412.3 hours; tach 2,318.7; engine Lycoming O-320-E2D 1,284.6 hours since major overhaul; prop McCauley 1C160 812.0 hours since overhaul WorkNotes: annual done 10/07/2026; replaced left main tire and tube (Goodyear 5.00-5 tire, P/N 505C61-8, tube P/N 595-327); replaced 4 spark plugs with fine wire plugs (P/N REM38E), gapped per manual; compression 74/80, 76/80, 72/80, 75/80; oil and filter change; seat rail AD inspection done, no cracks; ELT battery due 02/2027; found right flap roller worn, owner wants it deferred to next month (flap still works within limits per mechanic) ApprovedData: Cessna 172 Service Manual D2065-3-13 (rev level as on shelf, NEED confirm), Lycoming SI 1191A compression, AD 2011-10-09 (seat rails, recurring every 100 hours or annual), Champion/Lycoming spark plug guidance as noted in the manual InspectionType: annual inspection, approved for return to service SignerInfo: Dana Ruiz, A&P IA, certificate number to be added by hand Format: airframe entry, engine entry, prop entry, AD lines, parts, signature, records check
Example Output
AIRFRAME LOGBOOK, Cessna 172M, N0000X, S/N 17266xxx Date: 10/07/2026 Total time: 6,412.3 hrs Tach: 2,318.7 - Performed an annual inspection in accordance with 14 CFR Part 43 Appendix D and the Cessna 172 Service Manual D2065-3-13 (rev NEED). - Removed and replaced left main tire and tube: Goodyear 5.00-5 tire P/N 505C61-8, tube P/N 595-327, per Service Manual chapter on wheels and tires (chapter and rev NEED). Inflated to manual pressure. - Complied with AD 2011-10-09 (seat rails): inspected seat rails, no cracks found. See AD line below. - Noted right flap roller wear; flap operates within limits. Item on discrepancy list to owner; see note. - ELT battery due 02/2027 per current battery label (entry verified, no work performed). Annual inspection statement: I certify that this aircraft has been inspected in accordance with an annual inspection and was determined to be in airworthy condition. Signature: __________________ Dana Ruiz, A&P IA, Cert No. __________ Date: 10/07/2026 ENGINE LOGBOOK, Lycoming O-320-E2D Date: 10/07/2026 Tach: 2,318.7 Engine time since major overhaul: 1,284.6 hrs - Annual inspection of engine per Part 43 Appendix D and the Service Manual. - Differential compression check per Lycoming SI 1191A: cyl 1 74/80, cyl 2 76/80, cyl 3 72/80, cyl 4 75/80. - Removed and replaced 4 spark plugs with P/N REM38E, gapped per the Service Manual (chapter NEED). - Changed oil and filter (oil type, quantity, and filter P/N NEED). Signature: __________________ Dana Ruiz, A&P IA, Cert No. __________ PROPELLER LOGBOOK, McCauley 1C160 Date: 10/07/2026 Prop time since overhaul: 812.0 hrs - Inspected propeller during annual inspection per Part 43 Appendix D; no defects noted (confirm, NEED from work notes). Signature: __________________ Dana Ruiz, A&P IA, Cert No. __________ AD COMPLIANCE | AD | Method | Next due | | 2011-10-09 (seat rails), revision NEED | Inspected seat rails and stops per AD; no cracks found | Recurring: next 100 hour or annual inspection, whichever applies per AD text | Also confirm the full AD list for this airframe, engine, and prop was researched; the notes only mention one AD. PARTS AND DOCUMENTS - Tire P/N 505C61-8, tube P/N 595-327: keep invoice or release document in the aircraft file. - Spark plugs P/N REM38E x4: keep invoice. - Oil filter: P/N NEED. FLAP ROLLER NOTE The annual is approved with the flap roller judged within limits by the mechanic. If the mechanic decides the roller wear makes the aircraft unairworthy, use the not approved statement instead and give the owner a signed discrepancy list: "I certify that this aircraft has been inspected in accordance with an annual inspection and a list of discrepancies and unairworthy items dated 10/07/2026 has been provided for the aircraft owner or operator." RECORDS CHECK 1. Service Manual revision level not confirmed. 2. Chapter references missing for the tire and spark plug work. 3. Oil type, quantity, and filter P/N missing. 4. Prop inspection result not in work notes. 5. AD revision number and full AD research list missing. Draft for the certificated mechanic to review and sign.