What was found
DURING HANGER MAINTENANCE IN MCN, THE LEFT NACELLE UPPER FIREWALL WAS FOUND TO BE CRACKED WITH MATERIAL FALLING OUT. MAINTENANCE REPAIRED THE CRACKED NACELLE FIREWALL BY INSTALLING A DOUBLER IAW SRM.
- Difficulty date
- March 4, 2003
- Submitted
- March 27, 2003
- Operation
- Air carrier
- Aircraft
- N630AS
- Make and model
- Aerosp ATR72
- Aircraft serial
- 336
- Engine
- Pwa PW127
- System (JASC)
- 5412 · Nacelle/Pylon, Bulkhead/Firewall
- Part
- Firewall
- Part number
- S5421230500100
- Condition
- Cracked
- Location
- Lt Nacelle
- Stage of operation
- NR
- How discovered
- 9
- Nature of condition
- O
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.