Service difficulty report · Probe · Boeing 7572B7

Difficulty date
June 15, 2021
Submitted
June 21, 2021
Operation
Air carrier
Aircraft
N903FD
Make and model
Boeing 7572B7
Aircraft serial
27124
Aircraft time
57,498 hours, 26,720 cycles
Engine
Rroyce RB211535E4
Part
Probe
Condition
Dirty
Location
Lt Engine
Stage of operation
CL
How discovered
O
Nature of condition
M, J
Precautionary procedure
A

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

What was found

ON CLIMB OUT L ENGINE EGT WAS AT MAX LIMIT AS WELL AS N2. FUEL FLOW ON LEFT ENGINE WAS DOUBLE RIGHT SIDE. DECLARED EMERGENCY, PERFORMED QRH PROCEDURES AND RETURNED TO CDG. INSPECTED P1 PROBE AND FOUND DEBRIS STUCK INSIDE. DISCONNECTED P1 AIR TUBES AT P1 AIR ACCUMULATOR AND AT FFG AND PURGED SYSTEM WITH DRY NITROGEN. P1 PROBE IS NOW CLEAR AND GOOD AIR FLOW AT ALL POINTS. RECONNECTED AIR TUBES IAW AMM 70-51-00-2.

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