SDR IPXA2019091046593

Service difficulty report · Pilot Valve · Boeing 75724APF

Difficulty date: September 10, 2019
Submitted: September 11, 2019
Operation: Air carrier
Aircraft: N470UP
Make and model: Boeing 75724APF
Aircraft serial: 25486
Aircraft time: 28,078 hours, 17,041 cycles
Engine: Rroyce RB211*
System (JASC): 3610 · Pneumatic Distribution System
Part: Pilot Valve
Condition: Malfunctioned
Location: Bleed Air Sys
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

INSPECTION TYPE:N/A AT 0408Z, CRUISE ALTITUDE FL370, TAT -21C, CLEAR SKIES WE NOTICED THE RT ENG EGT SURGED FROM APPROX 590 TO 670 SPORADICALLY AT LEAST HALF A DOZEN TIMES EPR N1 N2N3 ALL INCREASED ALONGWITH EGT SURGE. IT WAS AUDIABLY NOTICEABLE TO ALL OF USC/W K ALERT 187714 FOE EEC BVCU & TPU AFTER POWER PLANT ENGINEER & TECH SUPPORT REVIEWED DATA. R&R OF HIGH STAGE PILOT PER AMM 36-11-08-401 OPS NORMAL, SECURED COWLS.

More about the Boeing 757-24APF