Service difficulty report · Engine · Bombdr BD1001A10

Difficulty date
May 22, 2026
Submitted
May 26, 2026
Operation
Air carrier
Aircraft
N701QS
Make and model
Bombdr BD1001A10
Aircraft serial
20797
Aircraft time
8,074 hours, 4,738 cycles
Engine
Hnywl AS90721A
Part
Engine
Part number
700407021
Part serial
P136166
Condition
Failed
Location
Left
Part time
72,100 hours, 7,030 cycles
Stage of operation
CL
How discovered
O
Nature of condition
A, E, 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 CLIMBOUT SHORTLY AFTER TAKEOFF, RECEIVED A STRONG VIBRATION FOLLOWED BY A L ENG EXCEEDANCE CAS & A OVERTEMP ON ITT. REDUCED THUST LEVER TO BRING ITT DOWN. RECEIVED A LT ENG VIBRATION CAS FOLLOWED BY A LT ENG FLAMEOUT CASS. VIBRATION DECREASED BUT NEVER WENT AWAY. REMOVED UNSERVICEABLE LT ENGINE, IAW AMM 71-00-01-000-801. INSTALL CUSTOMER PROVIDED REPAIRED ENGINE INSTALLED ON REPLACEMENT LT ENGINE. ALL POST OPS CHECK COMPLETED OPS CHKD GOOD.