AD 74-11-05

Airworthiness directive · Fire Extinguisher Circuits · Gulfstream Aerospace G-1159

Effective
May 24, 1974
Model
G-1159
Data sheet
TCDSA12EA
Registered aircraft
14 matched by model
Product
Aircraft · Large airplane
Amendment
39-1849

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.

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The airworthiness directive

74-11-05 GRUMMAN AMERICAN AVIATION CORPORATION: Amendment 39- 1849. Applies to Grumman G-1159, Serial Number 1 through 110 and 775 except 91 and 95, certificated in all categories.

Compliance required within the next 100 hours time in service after the effective date of this AD, unless already accomplished.

To provide dual electrical fire extinguisher squib circuits, accomplish the following or an equivalent rework approved by the Chief, Engineering and Manufacturing Branch, Southern Region.

Remove the left and right fire extinguisher switches MS24523-21 and install MS24524- 21 switches in their place.

Wire switches in accordance with Grumman Gulfstream II Aircraft Service Change 121.

Replace pilot's circuit breaker panel nameplate 1159AV2042 with nameplate 1159SB20082-11.

This rework is outlined in detail in the Grumman Gulfstream II Aircraft Service Change 121.

This amendment is effective May 24, 1974.

Affected TCDS · 1

The type certificate data sheets for the models this AD names, matched by model and maker.

Registered aircraft · 14

Registered aircraft whose airframe or engine model this AD names. Matched by model only, so check each against the AD’s applicability.

By aircraft maker
  • Grumman8 aircraft
  • Grumman American Avn.4 aircraft
  • Gulfstream American2 aircraft
By year built
19671977
Registered aircraft by year built: 7 aircraft
19671
19682
19711
19741
19761
19771

7 with no year recorded

By model

Aircraft