# AD 77-07-09: Tailpipes

- Type: Airworthiness directive
- Status: Current
- Products: Dassault Falcon 10
- Effective: April 18, 1977
- Superseded by: Nothing supersedes this AD
- Product type: Aircraft, Large airplane
- Amendment: 39-2867
- Registered aircraft: 59 may be affected, by airframe or engine model (OpenAirDocs)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/A865610B5A722E328625698B005BD1B8.0001
- DRS record last changed: May 30, 2024
- Page: https://openairdocs.org/ad/77-07-09

## The airworthiness directive

77-07-09 AVIONS MARCEL DASSAULT/BREGUET AVIATION (AMD/BA): Amendment 39-2867. Applies to Falcon 10 airplanes, certificated in all categories, equipped with Grumman tailpipe, P/N F10A5B10003-7, installed without back-up ring, P/N F10A5B10606-11.

Compliance is required as indicated, unless already accomplished.

To prevent the possible loss of the tailpipe, accomplish the following:

  (a) For tailpipes having more than 750 hours time in service on the effective date of this AD, comply with paragraph (c) of this AD within 90 days or 150 hours time in service after the effective date of this AD, whichever occurs first.

  (b) For tailpipes having 750 hours or less time in service on the effective date of this AD, comply with paragraph (c) of this AD prior to the accumulation of 900 hours total time in service.

  (c) Replace tailpipe, P/N F10A5B10003-7, with a new part of the same part number, or with a serviceable part of improved design, P/N F10A5RDB20217-3, and in either case install with back-up ring P/N F10A5B10606-11.

(Falcon 10 Service Bulletin No. 0129, dated December 21, 1976, covers this subject.)

This amendment becomes effective April 18, 1977.

## Affected data sheets (1) (OpenAirDocs)

The type certificate data sheets whose models the AD names.

- [TCDS A33EU](https://openairdocs.org/tcds/A33EU): Dassault Aviation; names 1 of 1 models: Falcon 10

## Registered aircraft it may apply to (OpenAirDocs)

Matched by airframe and engine model; the AD's applicability may narrow it by serial number, part number or equipment.

- Aircraft: 59 (59 by airframe model, 0 by engine model)
- Makers: Dassault-Breguet 56, Avion Marcel Dassault Breguet 2, Avions Marcel Dassault Breguet 1

Models with the most aircraft:

- [Dassault-Breguet FALCON 10](https://openairdocs.org/model/dassault-breguet-falcon-10): 56 aircraft (airframe model)
- [Avion Marcel Dassault Breguet FALCON 10](https://openairdocs.org/model/avion-marcel-dassault-breguet-falcon-10): 2 aircraft (airframe model)
- [Avions Marcel Dassault Breguet FALCON 10](https://openairdocs.org/model/avions-marcel-dassault-breguet-falcon-10): 1 aircraft (airframe model)

All 3 models: https://openairdocs.org/ad/77-07-09/models.md
Every aircraft: https://openairdocs.org/ad/77-07-09/aircraft.md

Its text cites no advisory circulars or STCs.

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