FAA incident report · Cessna 550 · Mason City, IA · August 26, 1987
From the FAA’s Accident/Incident Data System (AIDS), through its Aviation Safety Information Portal, as reported. The NTSB investigates accidents separately, and its record of an accident is the fuller one. The aircraft is matched to the registry by N-number and event date, checked against the reported make and model; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
Unable to maintain cabin pressure at FL350. Descent emergency and diverted. Replaced faulty pneumatic relay.
UNABLE TO MAINTAIN CABIN PRESSURE AT FL350. DESCENT EMERGENCY AND DIVERTED. REPLACED FAULTY PNEUMATIC RELAY.