Service difficulty report · Regulator · Boeing 737990ER

Difficulty date
July 13, 2020
Submitted
July 14, 2020
Operation
Air carrier
Aircraft
N467AS
Make and model
Boeing 737990ER
Aircraft serial
36362
Aircraft time
23,485 hours, 7,656 cycles
Part
Regulator
Part number
1074926
Part serial
15966
Condition
Leaking
Location
Bleed Air Sys
Part time
25,547 hours, 8,285 cycles
Stage of operation
NR
How discovered
O
Nature of condition
O
Precautionary procedure
O

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

What was found

DUCT PRESSURE SPLIT 22 PSI, L PRESS 42, R PRESS 20. L PRESS WOULD SPIKE UP TO 5 MORE PSI PERIODICALLY. DURING LOWER POWER SETTINGS IE DECENT DIFF PRESS WOULD EQUALIZE. GROUNDED - YES. ACCOMPLISHED ENG NR 2 BLEED AIR SYSTEM HEALTH CHECK REF T/C NG-36WC-00001. FOUND BAR LEAKING, REMOVED & REPLACED NR 2 ENG BAR REF AMM 36-11-03.