Service difficulty report · Acm · Boeing 737990ER

Difficulty date
November 27, 2021
Submitted
November 30, 2021
Operation
Air carrier
Aircraft
N440AS
Make and model
Boeing 737990ER
Aircraft serial
41705
Aircraft time
30,236 hours, 9,690 cycles
Part
Acm
Part number
22064002
Part serial
9497
Condition
Seized
Location
Right Ecs Bay
Part time
30,236 hours, 9,690 cycles
Stage of operation
IN
How discovered
V
Nature of condition
J
Precautionary procedure
O

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

What was found

R/H PACK LIGHT IS ON, WILL NOT RESET W/ MASTER CAUTION AND SIX PACK. GROUNDED - YES. UPON FCSOV REMOVAL FOUND ACM SIEZED AND DAMAGED BLADES. ALSO FOUND DAMAGE ON PRIMARY DIFFUSER. REMOVED ACM PER B737-900 AMM 21-51-04-000-802-002. REMOVED PRIMARY DIFFUSER PER AMM 21-51-03-000-805-002.