19971223043609I

Incident

FAA incident report · Lear 35A · Sioux Falls, SD · December 23, 1997

Date: December 23, 1997 · 17:30 local
Place: Sioux Falls, SD
Airport: Joe Foss Field
Phase of flight: Normal Cruise
Operating rules: General operating rules (Part 91)
Aircraft: N684HA
Reported as: Lear 35A
People aboard: 1
Fatal injuries: 0

N684HARegistration cancelled May 19, 2015 · Gates Learjet 35AS/N 113 Airframe modelGates Learjet 35A Engine modelNONENone

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.

What happened

The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.

Narrative: during cruise flight at FL 390, aircraft began losing pressurization. Pilot requested descent to FL 210. The aircraft was still not maintaining pressurization, so pilot descended to 11,000 to trouble shoot. Unable to correct problem, pilot diverted to and landed at Sioux Falls, south dakota. Maintenance replaced a defective duct temperature limiting valve.

As the FAA filed it

NARRATIVE: DURING CRUISE FLIGHT AT FL 390, AIRCRAFT BEGAN LOSING PRESSURIZATION. PILOT REQUESTED DESCENT TO FL 210. THE AIRCRAFT WAS STILL NOT MAINTAINING PRESSURIZATION, SO PILOT DESCENDED TO 11,000 TO TROUBLE SHOOT. UNABLE TO CORRECT PROBLEM, PILOT DIVERTED TO AND LANDED AT SIOUX FALLS, SOUTH DAKOTA. MAINTENANCE REPLACED A DEFECTIVE DUCT TEMPERATURE LIMITING VALVE.

Other reports on N684HA · 1

Matched to the same aircraft by N-number and date.

Incident 19930529023809IForced/Precautionary Landing · Windsor Locks, CTAileron problem after takeoff. Returned. Left tip tank touched ground and right wheel landed on grass beside runwayMay 29, 1993 · Minor damage