AD 76-07-13
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Hamburger Flugzeugbau G.m.b.H. | HFB 320 Hansa | Airworthiness Directives; HAMBURGER FLUGZEUGBAU GmbH Model HFB-320 Airplanes |
Unsafe Condition
Incorrect adjustment of camlocks could result in cracking of the camlock housing, possible inadvertent opening of the door, and inflight explosive decompression.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect camlocks for correct adjustment per HFB Hansa Alert Service Bulletin 53-21A, rectify out-of-adjustment camlocks per the same service bulletin, inspect door frame camlock housings for cracks using dye penetrant method per the service bulletin, and replace cracked camlock housings with new parts before further flight except for unpressurized flights under FAR 21.197 and 21.199.
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Compliance Time
within the next 25 hours time in service after the effective date of this AD, unless already accomplished
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Affected Aircraft
HAMBURGER FLUGZEUGBAU GmbH Model HFB-320 airplanes, serial numbers 1021 thru 1023, 1026 thru 1028, 1030 thru 1040, 1045, and 1049 thru 1057
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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