Service difficulty report · Valve · Boeing 767375

Difficulty date
October 25, 2017
Submitted
November 21, 2017
Operation
Air carrier
Aircraft
N649GT
Make and model
Boeing 767375
Aircraft serial
25864
Aircraft time
85,253 hours, 22,124 cycles
Part
Valve
Part number
2780539103
Part serial
1407
Condition
Noisy
Location
Rt A/C Pack
Stage of operation
IN
How discovered
9
Nature of condition
O
Precautionary procedure
K

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

What was found

RIGHT PACK AFT END ISOLATION AIR SUPPLY VALVE MAKES A LOUD METALIC NOISE. REMOVED AND REPLACED THE RT PACK ISOLATION AIR SUPPLY VALVE IAW AMM 36-11-04-404-013. OPS CHECKED GOOD.