AD 85-23-03
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Lockheed Martin Corporation | 382 | LOCKHEED Models 382, 382B, 382E, 382F, and 382G Series Airplanes |
| aircraft | Lockheed Martin Corporation | 382B | LOCKHEED Models 382, 382B, 382E, 382F, and 382G Series Airplanes |
| aircraft | Lockheed Martin Corporation | 382E | LOCKHEED Models 382, 382B, 382E, 382F, and 382G Series Airplanes |
| aircraft | Lockheed Martin Corporation | 382F | LOCKHEED Models 382, 382B, 382E, 382F, and 382G Series Airplanes |
| aircraft | Lockheed Martin Corporation | 382G | LOCKHEED Models 382, 382B, 382E, 382F, and 382G Series Airplanes |
Unsafe Condition
Fire extinguisher squibs with Holex part number 4199-1 (Lockheed number 695679-15) and loading date 1/84 may misfire, posing a risk of serious injury or death due to accidental firing.
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Required Actions
Inspect each fire extinguisher squib to determine part number and loading date. Replace squibs with part number 4199-1 (Lockheed 695679-15) and loading date 1/84 with serviceable squibs before further flight. If replacement is unavailable, perform resistance measurements every 30 days until a replacement is installed or the squib reaches its life limit.
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Compliance Time
within 30 days after the effective date of this AD, unless already accomplished
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Affected Aircraft
Lockheed Models 382, 382B, 382E, 382F, and 382G series Hercules airplanes with specific serial numbers: 4134, 4147, 4208, 4248, 4250, 4299, 4300, 4301, 4303, 4362, 4383, 4384, 4388, 4391, 4472, 4477, 4558, 4561, 4565, 4586, 4590, and 4763.
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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