Service difficulty report · Bulkhead Web · Boeing 737990

Difficulty date
March 9, 2016
Submitted
March 25, 2016
Operation
Air carrier
Aircraft
N303AS
Make and model
Boeing 737990
Aircraft serial
30016
Aircraft time
53,482 hours, 20,560 cycles
Part
Bulkhead Web
Part number
111A11111
Condition
Cracked
Location
Bs 663
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

LEFT MLG WHEEL WELL FWD BULKHEAD WEB POSSIBLE CRACK ABOVE AILERON AUTOPILOT VALVE. ACFT GROUNDED. REMOVED DAMAGE AND ACCOMPLISHED DOUBLER REPAIR IAW SRM 57-10-10-2R-3, REPAIR 3. REPAIR 3 IS CATEGORY B WITH AN INSPECTION THRESHOLD DUE 56,000 FLIGHT CYCLES. REPAEAT INTERVAL INSPECTIONS ARE REQUIRED AT 36,000 FLIGHT CYCLES BY HFEC INSPECTIONS IAW NOT PART 6 51-00-00, PROCEDURE 23 AND LFEC INSPECTIONS IAW NOT PART 6, 51-00-26 DETAILED IAW SRM 57-10-10 2R-3 REPAIR 3, PARAGRAPH 2, TABLE 204.