Incident · 1989-03-09
What the record says
- Event date
- 1989-03-09
- Event type
- Incident
- Highest injury level
- No injuries
- Aircraft
- BOEING 737-201 (N217US)
- Operating rule
- Part 121
- Operator
- operator not named in the NTSB record
Probable cause
AN EXCESSIVELY WORN OUTFLOW VALVE IN THE CABIN EVIRONMENTAL/PRESSURIZATION SYSTEM THAT RESULTED IN A RAPID CABIN DEPRESSURIZATION.
Source: NTSB case ATL89IA099Flight crew
Flight-crew details for this event aren't in the NTSB database extract we hold (its coverage starts with 2008 events) — a gap in our data, not an absence of crew.
Facts as the NTSB records them — GroundCheck adds no judgement. Preliminary records may be revised as the investigation proceeds.