# AD 68-10-02: Cargo Door and Escape Hatch Heater Blankets - Type: Airworthiness directive - Status: Current - Products: Boeing 707-100 Long Body, 707-100B Long Body, 707-100B Short Body, 707-200, 707-300 Series, 707-300B Series, 707-300C Series, 707-400 Series, 727-100 Series, 727-100C Series, 727-200 Series, 727-200F Series and 2 more - Effective: May 11, 1968 - Superseded by: Nothing supersedes this AD - Product type: Aircraft, Large airplane - Amendment: 39-595 - Registered aircraft: 31 may be affected, by airframe or engine model (OpenAirDocs) - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/1246B0E8292F0EA98625682E00623829.0001 - DRS record last changed: May 30, 2024 - Page: https://openairdocs.org/ad/68-10-02 ## The airworthiness directive 68-10-02 BOEING: Amendment 39-595. Applies to Model 707 and 727 Series airplanes equipped with G. E. cargo door and escape hatch heater blankets P/N 8921165G1 through G7, Boeing P/N 10-60911-9 through -15, which have not been modified in accordance with General Electric Service Bulletin No. SB-2 dated October 4, 1967, including Modification No. 2 dated December 11, 1967. Compliance required within the next 100 hours' time in service after the effective date of this AD, unless already accomplished. To prevent fires in the cargo door and escape hatch heater blankets, accomplish the following: 1. Deactivate the "Passenger Cabin Blanket Heater" switch on the flight engineer's panel and placard switch "Inoperative", and deactivate the "Main Cargo Door Heater" circuit breaker or breakers on the pilot's overhead circuit breaker panel. Secure the circuit breaker(s) in the "OFF" position to prevent inadvertent activation, and placard the breaker(s) "Inoperative". 2. Deactivate the "Passenger Cabin Blanket Heater" switch on the flight engineer's panel and placard it "Inoperative" and deactivate the "Escape Hatch Heater" circuit breaker or breakers on the pilot's overhead circuit breaker panel. Secure the circuit breaker(s) in the "OFF" position to prevent inadvertent activation, and placard the circuit breaker(s) "Inoperative". 3. The heater blankets may be re-activated upon accomplishment of G.E. Service Bulletin No. SB-2 dated October 4, 1967, including Modification No. 2 dated December 11, 1967, or an equivalent approved by the Chief, Aircraft Engineering Division, Western Region. This amendment becomes effective May 11, 1968. ## Affected data sheets (3) (OpenAirDocs) The type certificate data sheets whose models the AD names. - [TCDS A3WE](https://openairdocs.org/tcds/A3WE): The Boeing Company; names 6 of 6 models: 727-100 Series, 727 Series, 727-200 Series, 727-100C Series, 727-200F Series, 727C Series - [TCDS 4A21](https://openairdocs.org/tcds/4A21): The Boeing Company; names 4 of 4 models: 707-100B Short Body, 707-200, 707-100 Long Body, 707-100B Long Body - [TCDS 4A26](https://openairdocs.org/tcds/4A26): The Boeing Company; names 4 of 4 models: 707-300B Series, 707-400 Series, 707-300 Series, 707-300C Series ## 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: 31 (31 by airframe model, 0 by engine model) - Makers: Boeing 31 Models with the most aircraft: - [Boeing 727-223](https://openairdocs.org/model/boeing-727-223): 9 aircraft (airframe model) - [Boeing 727-227](https://openairdocs.org/model/boeing-727-227): 4 aircraft (airframe model) - [Boeing 707-338C](https://openairdocs.org/model/boeing-707-338c): 2 aircraft (airframe model) - [Boeing 727-225](https://openairdocs.org/model/boeing-727-225): 2 aircraft (airframe model) - [Boeing 707-368C](https://openairdocs.org/model/boeing-707-368c): 1 aircraft (airframe model) - [Boeing 707-321B](https://openairdocs.org/model/boeing-707-321b): 1 aircraft (airframe model) - [Boeing 707-323B](https://openairdocs.org/model/boeing-707-323b): 1 aircraft (airframe model) - [Boeing 707-351B](https://openairdocs.org/model/boeing-707-351b): 1 aircraft (airframe model) - [Boeing 727-200F](https://openairdocs.org/model/boeing-727-200f): 1 aircraft (airframe model) - [Boeing 727-200](https://openairdocs.org/model/boeing-727-200): 1 aircraft (airframe model) - [Boeing 727-212](https://openairdocs.org/model/boeing-727-212): 1 aircraft (airframe model) - [Boeing 727-230](https://openairdocs.org/model/boeing-727-230): 1 aircraft (airframe model) - [Boeing 727-232](https://openairdocs.org/model/boeing-727-232): 1 aircraft (airframe model) - [Boeing 727-243](https://openairdocs.org/model/boeing-727-243): 1 aircraft (airframe model) - [Boeing 727-247](https://openairdocs.org/model/boeing-727-247): 1 aircraft (airframe model) - [Boeing 727-264](https://openairdocs.org/model/boeing-727-264): 1 aircraft (airframe model) - [Boeing 727-281](https://openairdocs.org/model/boeing-727-281): 1 aircraft (airframe model) - [Boeing 727-277](https://openairdocs.org/model/boeing-727-277): 1 aircraft (airframe model) All 18 models: https://openairdocs.org/ad/68-10-02/models.md Every aircraft: https://openairdocs.org/ad/68-10-02/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.