What was found
DURING PERIODIC CHECK, FOUND SIX INCH CRACK IN THE NR 4 PYLON ON RIGHT SIDE OF FRAME AT NAC STA 238 TEN INCHES UP FROM LOWER END. REPAIRED PER SRM 51-10-1.
- Difficulty date
- February 19, 1997
- Submitted
- March 26, 2000
- Operation
- Air carrier
- Aircraft
- N640US
- Make and model
- Boeing 747251F
- Aircraft serial
- 23888
- System (JASC)
- 5411 · Nacelle/Pylon, Frame/Spar/Rib
- Part
- Frame
- Condition
- Cracked
- Location
- Bs 238
- 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.