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19 July 2000 - Airwave 9807

Linneus, Maine
Airwave Transport, Flight 9807
Grumman G-159 Gulfstream I
C-GNAK

Airwave Flight 9807 departed Moncton around 23.48h for a courier flight to Montreal. At 00.15:15 the airplane was assigned a "block" altitude clearance between FL140 and FL150. At 00.25:21, the flight crew asked for, and received clearance to climb to FL160. At 00.29:56, the flight crew declared an emergency and requested vectors for the nearest airport. The aircraft descended out of control and crashed on the eastern side of the Meduxnekeag River. It appeared that the crew experienced a failure of the airplane's number one engine, prior to declaring an emergency to air traffic control.
The pilot-in-command was the owner and president of Airwave Transport. He had accumulated about 6,000 hours of total flight experience, of which 500 hours were as Gulfstream I pilot-in-command. The co-pilot had about 600 hours of total fight experience, of which 300 Gulfstream I hours.

PROBABLE CAUSE: "The pilot-in-command's failure to maintain minimum control airspeed, which resulted in a loss of control. Factors in this accident were clouds, and a loss of engine power for undetermined reasons, while in cruise flight above the airplane's single engine service ceiling."


Photo of a Grumman G-159 Gulfstream I


Transcript of the Cockpit Voice Recorder (CVR)

CAP = Captain
F/O = First officer
RDO-2 = First officer Radio communications
# = expletive

elapsed time 1) source content
00.29:16 A sound similar t decrease in propeller RPM
00.29:20 F/O: we got an engine failure, number one
00.29:27 CAP: carry out the drill
00.29:41 F/O: feathered. RPM zero
00.29:55 CAP: what the # is going on?
00.29:57 F/O: I don't know.
00.30:07 CAP: what is going on here.
00.30:09 F/O: I don't know. # you're losing airspeed as well.
00.30:12 CAP: ok. Declare an emergency.
00.30:25 F/O: oh # keep it.
00.30:26 F/O: keep it up. Keep it up.
00.30:36 CAP: oh no, uh oh.
00.30:42 RDO-2: the co-pilot transmitted we've lost control.
00.30:46 a sound similar to varying change in propeller noise begins and continues to the end of recording.
00.30:51 CAP: uh ohh.
00.30:54 F/O: which way are we flying?
00.30:56 CAP: I have no-
00.30:56 F/O: I don't know I don't know.
00.31:09 CAP: I have no idea which way is up.
00.31:10 F/O: oh. Ground... I don't know either [].
00.31:13 CAP: *upside down?

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