# AD 81-06-02: Emergency Descent Devices - Type: Airworthiness directive - Status: Current - Products: Airbus A300 B2-1A, A300 B2-1C, A300 B2-203, A300 B2K-3C, A300 B4-103, A300 B4-203, A300 B4-2C, A300 B4-601, A300 B4-603, A300 B4-605R, A300 B4-620, A300 B4-622 and 16 more - Effective: March 19, 1981 - Superseded by: Nothing supersedes this AD - Product type: Appliance - Amendment: 39-4059 - Registered aircraft: 134 may be affected, by airframe or engine model (OpenAirDocs) - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/BBF935D1B0F91D8886256A37006F390A.0001 - DRS record last changed: May 30, 2024 - Page: https://openairdocs.org/ad/81-06-02 ## The airworthiness directive 81-06-02 FROST ENGINEERING DEVELOPMENT CORPORATION: Amendment 39-4059. Applies to emergency descent devices installed on Boeing 747, Lockheed L-1011, and Airbus Industrie A-300 airplanes. Compliance required as indicated. To prevent failure of emergency descent devices accomplish the following: A. Within 30 days from the effective date of this AD, unless already accomplished, inspect Frost Engineering descent devices for broken handle straps in accordance with paragraph 2, steps (1), (2), and (4) of Frost Engineering Development Corporation Service Bulletin 379103-25-002 dated September 29, 1980, or in a manner approved by the Chief, Seattle Area Aircraft Certification Office, FAA Northwest Region. B. Descent devices found to have a broken handle strap must be modified in accordance with paragraph 2, steps (6) through (9) of Frost Engineering Development Corporation Service Bulletin 379103-25-002 dated September 29, 1980, or in a manner approved by the Chief, Seattle Area Aircraft Certification Office, FAA Northwest Region. C. Within 120 days from the effective date of this AD, unless already accomplished, modify the descent devices found to have a magnetic handle strap in accordance with paragraph 2, steps (5) through (9) of Frost Engineering Development Corporation Service Bulletin 379103-25-002 dated September 29, 1980, or in a manner approved by the Chief, Seattle Area Aircraft Certification Office, FAA Northwest Region. D. Within 120 days from the effective date of this AD, replace descent devices P/N 379103-1, serial numbers 1 through 0134, with other FAA approved descent devices. E. Upon the request of the operator, and subject to prior approval by the Chief, Seattle Area Aircraft Certification Office, FAA Northwest Region, an FAA Aviation Safety Inspector may adjust the compliance times if the request contains substantiating data to justify the change. The manufacturer's specification and procedures identified and described in this directive are incorporated herein and made a part hereof pursuant to 5 U.S.C. 552(a)(1). All persons affected by this directive who have not already received these documents from the manufacturer, may obtain copies upon request to Frost Engineering Development Corporation, P.O. Box 1294, Englewood, Colorado 80150. These documents may also be examined at FAA Northwest Region, 9010 East Marginal Way South, Seattle, Washington 98108. This amendment becomes effective March 19, 1981. ## Affected data sheets (3) (OpenAirDocs) The type certificate data sheets whose models the AD names. - [TCDS A35EU](https://openairdocs.org/tcds/A35EU): Airbus SAS; names 9 of 17 models: A300 B4-622R, A300 F4-605R, A300 B4-601, A300 B4-603, A300 B4-622, A300 F4-622R, A300 B4-620, A300 C4-605R Variant F… - [TCDS A20WE](https://openairdocs.org/tcds/A20WE): The Boeing Company; names 7 of 14 models: 747-100B Series, 747SP Series, 747-200B Series, 747-200F Series, 747-200C Series, 747SR Series, 747-100 Series - [TCDS A23WE](https://openairdocs.org/tcds/A23WE): Lockheed Martin Corporation; names 4 of 4 models: L-1011-385-1-14, L-1011-385-3, L-1011-385-1, L-1011-385-1-15 ## 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: 134 (134 by airframe model, 0 by engine model) - Makers: Airbus Industrie 72, Airbus 48, Boeing 10, Lockheed 4 Models with the most aircraft: - [Airbus Industrie A300 F4-605R](https://openairdocs.org/model/airbus-industrie-a300-f4-605r): 36 aircraft (airframe model) - [Airbus A300 F4-622R](https://openairdocs.org/model/airbus-a300-f4-622r): 31 aircraft (airframe model) - [Airbus Industrie A300 F4-622R](https://openairdocs.org/model/airbus-industrie-a300-f4-622r): 21 aircraft (airframe model) - [Airbus A300 B4-622R](https://openairdocs.org/model/airbus-a300-b4-622r): 11 aircraft (airframe model) - [Airbus Industrie A300 B4-622R](https://openairdocs.org/model/airbus-industrie-a300-b4-622r): 10 aircraft (airframe model) - [Airbus A300 F4-605R](https://openairdocs.org/model/airbus-a300-f4-605r): 6 aircraft (airframe model) - [Airbus Industrie A300 B4-605R](https://openairdocs.org/model/airbus-industrie-a300-b4-605r): 3 aircraft (airframe model) - [Boeing 747-123](https://openairdocs.org/model/boeing-747-123): 2 aircraft (airframe model) - [Boeing 747-251F](https://openairdocs.org/model/boeing-747-251f): 2 aircraft (airframe model) - [Airbus Industrie A300 B4-622](https://openairdocs.org/model/airbus-industrie-a300-b4-622): 2 aircraft (airframe model) - [Lockheed L-1011-385-1](https://openairdocs.org/model/lockheed-l-1011-385-1): 2 aircraft (airframe model) - [Boeing 747-257B](https://openairdocs.org/model/boeing-747-257b): 1 aircraft (airframe model) - [Boeing 747-283B](https://openairdocs.org/model/boeing-747-283b): 1 aircraft (airframe model) - [Boeing 747-121](https://openairdocs.org/model/boeing-747-121): 1 aircraft (airframe model) - [Boeing 747-131](https://openairdocs.org/model/boeing-747-131): 1 aircraft (airframe model) - [Boeing 747-128](https://openairdocs.org/model/boeing-747-128): 1 aircraft (airframe model) - [Boeing 747-273C](https://openairdocs.org/model/boeing-747-273c): 1 aircraft (airframe model) - [Lockheed L-1011-385-1-15](https://openairdocs.org/model/lockheed-l-1011-385-1-15): 1 aircraft (airframe model) - [Lockheed L-1011-385-3](https://openairdocs.org/model/lockheed-l-1011-385-3): 1 aircraft (airframe model) All 19 models: https://openairdocs.org/ad/81-06-02/models.md Every aircraft: https://openairdocs.org/ad/81-06-02/aircraft.md Its text cites no advisory circulars or STCs. --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.