What was found
DURING P-CHECK, FOUND A 1.5 INCH CRACK IN THE NR 4 PYLON MID SPAR WEB. REPAIRED WEB (P/N 65B90319-8) PER EA 66-120431.
- Difficulty date
- October 29, 1996
- Submitted
- March 26, 2000
- Operation
- Air carrier
- Aircraft
- N631US
- Make and model
- Boeing 747251B
- Aircraft serial
- 23111
- System (JASC)
- 5400 · Nacelle/Pylon Structure
- Part
- Spar Web
- Condition
- Cracked
- Location
- Nr 4 Pylon
- Stage of operation
- IN
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.