Service difficulty report · Bellcrank Pin · Boeing 777222

Difficulty date
August 17, 1997
Submitted
March 26, 2000
Operation
Air carrier
Aircraft
N769UA
Make and model
Boeing 777222
Aircraft serial
26921
Engine
Pwa PW4077
Part
Bellcrank Pin
Part number
51D125
Condition
Failed
Location
2.5 Bleed Valve
Component
Pratt And Wh · 51D271
Stage of operation
TO
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

RIGHT ENGINE OVER TEMPERATURE DURING REDUCED POWER TAKEOFF. AT LEVEL OFF, TRIED TO BRING POWER BACK BUT TEMPERATURE WOULD RISE AGAIN. *S/D* REPLACED NR 2 ENGINE. FOUND 2.5 BLEED VALVE BELLCRANK (P/N 51D125) WITH PIVOT PIN BROKEN (51D271). ENGINE SENT TO PRATT AND WHITNEY FOR REPAIR. CAMPAIGN INITIATED TO REPLACE ORIGINAL DESIGN 2.5 BLEED HARDWARE WITH IMPROVED DESIGN.