- Effective
- May 11, 1968
- Models
- 707-100 Long Body, 707-100B Long Body, 707-100B Short Body, 707-200, 707-300 Series, 707-300B Series and 8 more
- Registered aircraft
- 31 matched by model
- Product
- Aircraft · Large airplane
- Amendment
- 39-595
Unofficial copy of the text in the FAA’s Dynamic Regulatory System. The FAA’s own copy is the authoritative one. DRS record last changed May 30, 2024.
Copies of the files this page was built from, with their SHA-256. Retrieved October 18, 2026.
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On this page
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 TCDS · 3
The type certificate data sheets for the models this AD names, matched by model and maker.
Registered aircraft · 31
Registered aircraft whose airframe or engine model this AD names. Matched by model only, so check each against the AD’s applicability.
| 1968 | 1 |
|---|---|
| 1971 | 1 |
| 1973 | 1 |
| 1975 | 2 |
| 1976 | 3 |
| 1977 | 3 |
| 1978 | 2 |
| 1979 | 1 |
| 1981 | 5 |
| 1982 | 1 |
11 with no year recorded