Service difficulty report · Engine · Beech 99A

Difficulty date
October 30, 2013
Submitted
November 4, 2013
Operation
Air carrier
Aircraft
N99GH
Make and model
Beech 99A
Aircraft serial
U112
Aircraft time
38,394 hours, 66,829 cycles
Engine
Pwa PT6A27
Engine time
25,548 hours, 33,361 cycles
Part
Engine
Condition
Overtemp
Location
Nr 2
Stage of operation
AP
How discovered
O
Nature of condition
M, J
Precautionary procedure
E

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

What was found

DURING AN ILS APPROACH. A MISSED APPROACH WAS EXECUTED. WHEN POWER WAS ADVANCED TO COMMENCE THE MISSED APPROACH, NR 2 ENGINE EXHIBITED HIGH ITT (1100 DEG C), TORQUE FLUCTUATED FROM 200 TO 1500 LBS. AND RPM FLUCTUATED FROM 0 TO 2200. AFTER THE ACFT WAS AT A SAFE ALTITUDE THE NR 2 ENGINE WAS SHUTDOWN. ONCE ESTABLISHED IN HOLDING A SUCCESSFUL AIRSTART WAS ACCOMPLISHED. NR 2 ENGINE OPERATED NORMALLY FOR THE REMAINDER OF THE FLIGHT.

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