What was found
DURING B-CHECK, FOUND NR 4 PYLON BULKHEAD STA 221.9 WORN FROM CONTACT WITH HYDRAULIC LINE AT INSIDE TOP AFT PIGEON HOLE. REPAIRED IAW BOEING 747 SRM 54-14-03 FIG 16.
- Difficulty date
- January 4, 2007
- Submitted
- February 15, 2007
- Operation
- Air carrier
- Aircraft
- N526UP
- Make and model
- Boeing 747212B
- Aircraft serial
- 21937
- Aircraft time
- 89,777 hours, 16,916 cycles
- System (JASC)
- 5412 · Nacelle/Pylon, Bulkhead/Firewall
- Part
- Structure
- Condition
- Worn
- Location
- Nr 4 Pylon
- 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.