What was found
BS 2521 LT UPPER LOBE DOUBLER CRACKED. INSTALLED REPAIR DOUBLER IAW ECRA 5313-01046.
- Difficulty date
- August 12, 2012
- Submitted
- August 17, 2012
- Operation
- Air carrier
- Aircraft
- N175UA
- Make and model
- Boeing 747422
- Aircraft serial
- 24382
- Aircraft time
- 86,751 hours, 9,800 cycles
- Engine
- Pwa PW4056
- System (JASC)
- 5310 · Fuselage Main, Structure
- Part
- Structure
- Condition
- Cracked
- Location
- Bs 2521
- 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.