What was found
APU DRAIN MAST CRACKED. ACFT GROUNDED. REPLACED THE APU FUEL FEED LINE SHROUD MAST IAW AMM 28-25-07.
- Difficulty date
- May 20, 2018
- Submitted
- May 21, 2018
- Operation
- Air carrier
- Aircraft
- N506AS
- Make and model
- Boeing 737890
- Aircraft serial
- 35690
- Aircraft time
- 37,857 hours, 11,592 cycles
- System (JASC)
- 2820 · Aircraft Fuel Distribution System
- Part
- Drain Mast
- Part number
- 417A20937
- Condition
- Cracked
- Location
- Lt Wng-Body
- 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.