Service difficulty report · Web · Boeing 747249F

Difficulty date
May 29, 2002
Submitted
May 30, 2002
Operation
Air carrier
Aircraft
N920FT
Make and model
Boeing 747249F
Aircraft serial
22237
Aircraft time
70,235 hours, 17,248 cycles
Part
Web
Part number
NONE
Part serial
NONE
Condition
Cracked
Location
#3 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.

What was found

CRACK 3.5" LONG FOUND #3 PYLON WEB BETWEEN RIVET HOLES BELOW STIFFNER (STA 211.42, MID SPAR WEB). DOUBLER REPAIR FABRICATED IAW SRM 54-14-03, PG 20. THE RIVETS WERE REMOVED PLUS FURTHER 3 EITHER SIDE OF CRACK. 2 OF FURTHER ROWS OF FASTENERS PITCHED FORWARD & REAR STIFFNER INCORPORATED DOUBLER ATTACHED USING HI-LOK BOLTS. DOUBLER MFG'D FROM 2024-T3 & TREATED IAW MM 51-10-02 & REPAIR SEALED IAW MM 51-31-00.