SDR AU971539

Service difficulty report · Web · Boeing 737377

Difficulty date
September 18, 1997
Submitted
March 26, 2000
Operation
General aviation
Make and model
Boeing 737377
Part
Web
Condition
Cracked
Location
Fwd Press Blkhd
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.

What was found

(AUS) FORWARD PRESSURE BULKHEAD WEB CRACKED IN SEVEN PLACES:- A. AREA UNDER THE RADAR SCANNING MOUNTING BRACKETS CONTAINED FOUR CRACKS BETWEEN LBL 5.5 AND RBL 5.7 - CRACK LENGTHS 27MM (1.06IN), 13MM (0.5IN) AND TWO CRACKS OF 16MM (0.630IN)B. TWO CRACKS EITHER SIDE OF BLO JUST ABOVE WL 184 - CRACK LENGTHS 29MM (1.14IN) AND 20MM (0.787IN) C. ONE CRACK IN THE WEB ANGLE RADIUS INBOARD OF LBL 5.9 - CRACK LENGTH 28MM (1.1IN)FOUND DURING ULTRASONIC AND EDDY CURRENT INSPECTION IAW ERB73-53-10-39A