AD 84-23-05
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | The Boeing Company | 737-100 Series | BOEING Model 737 Series Airplanes |
| aircraft | The Boeing Company | 737-200 Series | BOEING Model 737 Series Airplanes |
| aircraft | The Boeing Company | 737-200C Series | BOEING Model 737 Series Airplanes |
| aircraft | The Boeing Company | 737-300 Series | BOEING Model 737 Series Airplanes |
| aircraft | The Boeing Company | 737-400 Series | BOEING Model 737 Series Airplanes |
| aircraft | The Boeing Company | 737-500 Series | BOEING Model 737 Series Airplanes |
| aircraft | The Boeing Company | 737-600 Series | BOEING Model 737 Series Airplanes |
| aircraft | The Boeing Company | 737-700 Series | BOEING Model 737 Series Airplanes |
| aircraft | The Boeing Company | 737-800 Series | BOEING Model 737 Series Airplanes |
Unsafe Condition
Cracks in the rear spar horizontal stabilizer attach lugs could result in loss of structural integrity of the horizontal stabilizer.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect the rear spar horizontal stabilizer attach lugs for cracks in accordance with Boeing Service Bulletin 737-55A1029, Revision 3, or later FAA approved revision. Repeat inspections at intervals not exceeding those specified in Table I of the service bulletin. Replace or repair cracked parts before further flight.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
within 200 landings after the effective date of this AD or upon the accumulation of the threshold number of landings specified in Table I of the service bulletin, whichever occurs later
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Boeing Model 737 series airplanes certificated in all categories listed in Boeing Service Bulletin 737-55A1029, Revision 3
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
This site is not affiliated with or endorsed by the FAA. Always verify with official sources.