What was found
LEFT OVERWING INTERCOSTAL WEB CRACKED BS 1220. MAJOR REPAIR ACCOMPLISHED. REPLACED WEB SECTION PER SB 747-53A2750.
- Difficulty date
- December 12, 2011
- Submitted
- December 22, 2011
- Operation
- Air carrier
- Aircraft
- N171UA
- Make and model
- Boeing 747422
- Aircraft serial
- 24322
- Aircraft time
- 83,896 hours, 9,991 cycles
- Engine
- Pwa PW4056
- System (JASC)
- 5320 · Fuselage Miscellaneous Structure
- Part
- Intercostal
- Condition
- Cracked
- Location
- Bs 1220
- Stage of operation
- IN
- How discovered
- V
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.