What was found
CORROSION ON FUSELAGE LT LOWER SIDE MAST AND COVER POTABLE WATER SYSTEM. REPLACED THE DRAIN MAST IAW AMM 38-31-61-004-002 REV 88 AND AMM 38-31-61-404-013 REV 88. PERFORMED A TEST OF DRAIN MAST IAW AMM 38-31-61-404-013 REV 88.
- Difficulty date
- February 7, 2017
- Submitted
- February 8, 2017
- Operation
- Air carrier
- Aircraft
- N412MC
- Make and model
- Boeing 74747UF
- Aircraft serial
- 30559
- Aircraft time
- 69,575 hours, 10,999 cycles
- System (JASC)
- 3830 · Waste Disposal System
- Part
- Mast
- Part number
- 8921270G2
- Part serial
- UID00890
- Condition
- Corroded
- Location
- Potable Water
- 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.