What was found
AFTER ENGINE START LH BLEED DUCT HAD ZERO PRESSURE WITH BLEED SWITCHON. GROUNDED - YES. REMOVE BLEED AIR REGULATOR REF B737-800 AMM TASK 36-11-03-000-801. INSTALL BLEED AIR REGULATOR REF AMM TASK 36-11-03-400-801 LEAK AND OPS CK OK.
- Difficulty date
- June 2, 2021
- Submitted
- June 4, 2021
- Operation
- Air carrier
- Aircraft
- N506AS
- Make and model
- Boeing 737890
- Aircraft serial
- 35690
- Aircraft time
- 47,313 hours, 14,325 cycles
- System (JASC)
- 7500 · Engine Bleed Air System
- Part
- Regulator
- Part number
- 1074926
- Part serial
- 961C
- Condition
- Inoperative
- Location
- Nr 1 Bleed Sys
- Part time
- 31,024 hours, 11,554 cycles
- Stage of operation
- TX
- 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.