- Date
- November 4, 1987, 18:00 local (23:00 UTC)
- Place
- Clearwater, FL
- Injuries
- 3 uninjured
- Damage
- Substantial damage
- Phase of flight
- Taxi
- Aircraft
- N900JELearjet 35A
- Weather
- Instrument (IMC) · Day
- Status
- Completed · report February 14, 1989
- Report
- Approved by Office Director
- FAA report
- 19871104062479A
- Case key
- 32083
From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.
On this page
Analysis
During taxi up to hangar under direction of lineman after arrival the flt experienced loss of hydraulic pressure and brakes. The plt could not activate the emergency brakes prior to rolling into the hangar and colliding with two acft prior to coming to rest. Examination of the acft revealed the spoileron control valve assembly suffered fracture of a NAS1351-4H-24P screw due to hydrogen embrittlement cracking which caused the screw head to separate from the screw shank. The screw is one of three which retains the selector valve to the manifold assembly. When the screw failed the valve body separated allowing loss of all usable hydraulic fluid. The source of the migrating elemental hydrogen into the fracture area could not be determined. The valve assembly had been installed in the acft since manufacture in 1977 and had accumulated 5,642 hours. The valve is maintained on condition.
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.
Aircraft
- Registration
- N900JE
- Reported as
- Learjet 35A
- Category
- Airplane
- Serial number
- 123
- Airframe hours
- 5,642
- Engine
- Garrett TFE-731-2-2B, 3,500 lbs thrust, turbo fan
- Damage
- Substantial damage
- Flight
- Executive/Corporate · Part 91
- Operator
- Jack Eckerd Corp.
- Registered owner
- Jack Eckerd Corp.
- Airworthiness certificate
- Standard, Normal
- Last inspection
- AAIP · October 9, 1987
- Departed
- PBI · W. Palm Bch, FL
- Flight plan
- IFR
- Airport
- PIE · St Petersburg/Clearwater, runway 17L, 7,990 × 150 ft, asphalt
Flight crew
As NTSB recorded them. NTSB leaves out names.
- Role
- Pilot
- Age
- 42
- Certificate
- Airline transport
- Airplane ratings
- Single-engine land, Multi-engine land
- Instrument ratings
- Airplane
- Medical
- Class 1, Valid Medical--no waivers/lim.
- Seat
- Left
- Flight hours
- 9,700 total · 3,600 in this make and model · 8,800 as pilot in command · 84 in the last 90 days · 1 in the last 24 hours
Weather
- Conditions
- Instrument (IMC) · Day
- Wind
- 240° at 8 knots
- Visibility
- 5 statute miles
- Lowest ceiling
- 400 ft broken
- Temperature
- 73 °F, dew point 72 °F
- Altimeter
- 29.00 inHg
- Observed at
- PIE
FAA reports on this event · 1
The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.