Service difficulty report · Coalescer Bag · Boeing 74747UF

Difficulty date
April 17, 2023
Submitted
April 21, 2023
Operation
Air carrier
Aircraft
N408MC
Make and model
Boeing 74747UF
Aircraft serial
29261
Aircraft time
94,195 hours, 15,862 cycles
Part
Coalescer Bag
Part number
NA
Part serial
NSN
Condition
Unknown
Location
Unknown
Stage of operation
LD
How discovered
V
Nature of condition
B, O
Precautionary procedure
K

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

DURING LANDING WITH REVERSE THRUST, EICAS SMOKE CREW REST APPEARED. HAZE NOTICED IN UPPER DECK. DISSIPATING SLOWLY AFTER REVERSERS STOWED. SUSPECT AIR CONDITIONING SYSTEM CONTAMINATION.(<P>REMOVED #3 PACK COALESCER BAG PER AMM 21-51-05-002-018 AND INSTALLED NEW COALESCER BAG PER AMM 21-51-05-400-801. OPERATED PACK 3 PER AMM 21-51-00/601, OPS CHECK GOOD AND NO VISIBLE HAZE NOTED.</P>)

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