- Date
- September 10, 1984, 20:50 local (Sep 11, 1984, 01:50 UTC)
- Place
- Chesterfield, MO
- Injuries
- 1 uninjured
- Damage
- Substantial damage
- Phase of flight
- Landing
- Aircraft
- N45AJGates Learjet LR-24D
- Weather
- Instrument (IMC) · Night/dark
- Status
- Completed
- Report
- Approved by Office Director
- FAA report
- 19840910049569A
- Case key
- 33789
From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.
On this page
Sequence of events
NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.
Analysis
The acft was landed in a thunderstorm with a 16 kt left quartering tailwind. The plt was aware of an area on the rwy which tended to collect water but due to heavy precipitation this area could not be viewed from the cockpit. The left main gear hydroplaned as it contacted this area during the landing roll resulting in a 90 deg right turn. The acft departed the right side of the rwy traveling into rough terrain at which time the left main gear punctured the wing. Hydroplane marks were visible on both left main gear tires after the accident.
Aircraft
- Registration
- N45AJ
- Reported as
- Gates Learjet LR-24D
- Category
- Airplane
- Serial number
- 24D-309
- Airframe hours
- 5,032
- Engine
- GE CJ610-6, 2,950 lbs thrust, turbo jet
- Damage
- Substantial damage
- Flight
- Part 135
- Operator
- St.Louis Flight Systems,Inc.
- Registered owner
- Amer. Jet. Leasing, Inc.
- Airworthiness certificate
- Standard, Normal
- Last inspection
- Continuous airworthiness · February 16, 1984 · 132 hours before
- Departed
- DET · Detroit, MI
- Destination
- SUS · Chesterfield, MO
- Flight plan
- IFR
- Airport
- SUS · Spirit Of St. Louis, runway 7, 6,008 × 150 ft, asphalt
Flight crew
As NTSB recorded them. NTSB leaves out names.
- Role
- Pilot
- Age
- 30
- Certificate
- Airline transport
- Airplane ratings
- Single-engine land
- Instrument ratings
- Airplane
- Medical
- Class 1, Valid Medical--no waivers/lim.
- Seat
- Left
- Flight hours
- 3,350 total · 3,000 in this make and model · 126 as pilot in command · 90 in the last 90 days · 4 in the last 24 hours
Weather
- Conditions
- Instrument (IMC) · Night/dark
- Wind
- 360° at 15 knots
- Visibility
- 5 statute miles
- Lowest ceiling
- 1,500 ft overcast
- Temperature
- 75 °F
FAA reports on this event · 1
The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.