SDR 99ZZZX3590

Service difficulty report · Windscreen · Cessna 421C

Difficulty date
September 11, 1999
Submitted
March 26, 2000
Operation
General aviation
Make and model
Cessna 421C
Part
Windscreen
Condition
Failed
Location
Cockpit
Stage of operation
CR
Nature of condition
F
Precautionary procedure
A

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

What was found

AIRCRAFT WAS AT 17,000 FEET, WHEN IT EXPERIENCED A CATASTROPHIC FAILURE OF THE PILOT'S WINDSCREEN CAUSING INSTANT DEPRESSURIZATION OF CABIN. CAUSE OF THIS FAILURE AT THIS TIME IS UNKNOWN. A POSSIBILITY IS THAT THE WINDSCREENS WERE REWORKED TO REMOVE SCRATCHES AND THIS WEAKENED THEM.

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