Service difficulty report · Control Valve · Boeing 737890

Difficulty date
November 23, 2011
Submitted
November 28, 2011
Operation
Air carrier
Aircraft
N566AS
Make and model
Boeing 737890
Aircraft serial
35181
Aircraft time
18,629 hours, 5,794 cycles
Part
Control Valve
Part number
3989083
Part serial
704C
Condition
Malfunctioned
Location
Ac Bay
Part time
60,221 hours, 31,207 cycles
Stage of operation
TX
How discovered
O
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

RT PACK ILLUMINATED DURING RECALL. PACK LIGHT EXTINGUISHED W/ MASTER CAUTION RESET. ACCOMPLISHED BITE TEST REF MM 21 61 00. FOUND RT TCV BAD. REPLACED TCV REF MM 21 61 21. NO LEAKS NOTED AT PRESENT TIME OP'S CHECK GOOD. ACCOMPLISHED FOLLOW UP BITE TEST TEST GOOD.