Service difficulty report · Regulator Valve · Boeing 7472D7B

Difficulty date
May 1, 2008
Submitted
May 5, 2008
Operation
Air carrier
Aircraft
N528MC
Make and model
Boeing 7472D7B
Aircraft serial
22472
Aircraft time
82,935 hours, 16,587 cycles
Part
Regulator Valve
Part number
8988061
Part serial
P696
Condition
Leaking
Stage of operation
TO
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

NR 1 ENGINE FULL POWER TAKEOFF ON CLIMB-OUT BOTH A/B LOOPS REACHED 3.0. AFTER POWER REDUCTION BOTH LOOPS CAME BACK DOWN TO 2.0. REST OF FLIGHT WAS OK. OPENED COWL AND FOUND LEAKING PRV. REPLACED THE PRV IAW AMM 36-11-13. OPS AND LEAK CHECKED OK.

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