Service difficulty report · Control Valve · Boeing 76733A

Difficulty date
October 22, 2015
Submitted
October 23, 2015
Operation
Air carrier
Aircraft
N583HA
Make and model
Boeing 76733A
Aircraft serial
25531
Aircraft time
98,863 hours, 17,645 cycles
Part
Control Valve
Part number
3964621
Part serial
P165
Condition
Malfunctioned
Location
Lt A/C Pack
Part time
1,757 hours, 370 cycles
Stage of operation
CR
How discovered
O
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

LT PACK OFF LIGHT ILLUMINATED WITH EICAS MESSAGE, WITHOUT ASSOCIATED INDICATION OF FAILURE, LIGHTS ONLY. R & R LT PACK FLOW CONTROL VALVE IAW AMM 21-51-01. REPLACED LT FLOW CONTROL CARD ASSY IAW AMM 21-51-09. OPS LEAK CHECK OK.

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