Date: 30 Nov 98 03:08:00
From: stephan@lac.inpe.br (Stephan Stephany LAC-CC)
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Concerning an airliner, who is in charge of
the external inspection? The PIC/1st officer
or some people from ground staff?
Concerning the AeroPeru 757 crash (2/10/96):
"Flight 603 took off from Lima Runway 15 at 12.42h am for a flight to
Santiago. Five minutes after take-off the crew reported problems with
their instruments and stated they wanted to return to the airport.
During the initial climb, the airspeed and altitude indications were
too low. In calm winds, the windshear warning suddenly sounded. The
aircraft climbed to FL130, before a return to Lima was initiated. While
returning, the captain's airpeed and altitude indications were too
high, causing an overspeed warning. At the same time, the co-pilot's
airspeed indications were too low, triggering the stickshaker. The
aircraft kept descending and impacted the water with the left wing and
no.1 engine at a 10 degrees angle, at a speed of 260kts. The aircraft
pulled up to about 200ft and crashed inverted. The captain's airspeed
indicated 450kts and altitude 9500ft. The aircraft had flown approx.
2630 cycles. Preliminary investigation results showed that the
aircraft's three static ports on the left side were obstructed by
masking tape. The tape had been applied before washing and polishing of
the aircraft prior to the accident flight."
The crew had no clue of altitude or airspeed (also the "backup" system
was inoperative), but just out of curiosity: could some pressure
indicator (if there is any) of the pressurization system had given to
the crew an idea of the outside pressure and (in consequence) of the
real altitude?
Thanks,
Stephan
--
Dr. Stephan Stephany
mailto:stephan@lac.inpe.br
phone +55 12 345-6547
http://www.lac.inpe.br/~stephan
LAC - Computing and Applied Mathematics Laboratory
INPE - Brazilian Institute for Space Research
BRAZIL
