- Difficulty date
- February 25, 2019
- Submitted
- March 11, 2019
- Operation
- Air carrier
- Aircraft
- N318AS
- Make and model
- Boeing 737990
- Aircraft serial
- 30018
- Aircraft time
- 55,891 hours, 22,184 cycles
- Part
- Bulkhead
- Part number
- 111A15121
- Condition
- Cracked
- Location
- Lt Mlg Ww
- 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
LT WW FWD BULKHEAD STA 663 LOWER WEB LBL20 ACM EXHAUST OUTLET CUT OUT FLANGE IS CRACKED. GROUNDED - YES. REMOVED AND REPLACED LT WW FWD BULKHEAD STA. 663 LOWER WEB LBL 20 ACM EXHAUST OUTLET CUT OUT FLANGE IAW SRM 51 40 02 0G 0 PG 3 STEP 4.E AND PG 2 STEP 4.B.