AD 49-07-02
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | The Boeing Company | AT-6 (SNJ-2) | Airworthiness Directives; North American Models BC-1A, AT-6, AT-6A, AT-6B, and AT-6C Aircraft |
| aircraft | The Boeing Company | AT-6A (SNJ-3) | Airworthiness Directives; North American Models BC-1A, AT-6, AT-6A, AT-6B, and AT-6C Aircraft |
| aircraft | The Boeing Company | AT-6B | Airworthiness Directives; North American Models BC-1A, AT-6, AT-6A, AT-6B, and AT-6C Aircraft |
| aircraft | The Boeing Company | AT-6C (SNJ-4) | Airworthiness Directives; North American Models BC-1A, AT-6, AT-6A, AT-6B, and AT-6C Aircraft |
| aircraft | The Boeing Company | BC-1A | Airworthiness Directives; North American Models BC-1A, AT-6, AT-6A, AT-6B, and AT-6C Aircraft |
Unsafe Condition
Engine stoppage on takeoffs and landings when operating on the left tank standpipe outlet with fuel levels down to the standpipe level due to pilot misinterpretation of the left tank fuel gauge and failure to switch to Reserve or Right Hand Main positions before fuel drops below 20 gallons.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Install a placard in each cockpit stating: 'CAUTION: Unless Left Tank is full, use Reserve or Right Tank for Takeoff and Landing.'
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
not later than April 1, 1949
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
North American Models BC-1A, AT-6, AT-6A, AT-6B, and AT-6C Aircraft (Army designations) and Navy SNJ-2, SNJ-3, SNJ-4 Aircraft
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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