Service difficulty report · Unknown · Boeing 737890

Difficulty date
October 19, 2023
Submitted
October 23, 2023
Operation
Air carrier
Aircraft
N587AS
Make and model
Boeing 737890
Aircraft serial
35684
Aircraft time
56,634 hours, 16,587 cycles
Part
Unknown
Part number
UNKNOWN
Condition
Unknown
Location
Unknown
Stage of operation
NR
How discovered
V
Nature of condition
J
Precautionary procedure
K

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

What was found

L PACK LIGHT ILLUMINATED SINGLE CHANNEL FAULT. GROUNDED - YES. REF FIM 21-53 TASK 821, PERFORMED PZTC 1 + 2 BITE, PZTC 1 HAD RAM AIR ACTUATOR FAULT LIGHT. REF FIM 21-62 TASK 837 PERFORMED OPS TEST OF PACK 1, OPS TEST GOOD, L/H PACK LIGHT NOT ILLUMINATED, PERFORMED PZTC 1 (AND 2) BITE AGAIN, NO FAULTS, PZTC 1 FAULT CLEARED AND DID NOT RETURN, DURING BITE "VERIFY" L/H RAM AIR ACTUATOR OPS NORMAL. PER FIM THIS WAS AN INTERMITTENT FAULT. REMOVES CN: 20002587 SEAMC JOE NOTIFIED. THIS CLEARS MEL 21-32B.