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NTSB Report
February 14, 1989 · Mbb BK-117 A-1 · N7025L
Tyler, TX
Overview
Report Status
Probable Cause
Event Type
Accident
Date
February 14, 1989
Injury Outcomes
3 injuries (3 fatalities)
Location
Tyler, TX
Aircraft
Mbb BK-117 A-1
Tail Number
N7025L
Operator
U S Jet
Injuries
Fatal
Aircraft Damage
Destroyed
NTSB Number
FTW89FA049
THE ACFT CRASHED AFTER CONTACTING 70' TALL HIGH TENSION POWER LINES WHILE ON A NIGHT NON-EMERGENCY EMS MISSION. ACCORDING TO WITNESSES, WX WAS IMC WITH LOW OVC CEILINGS, 1/4 TO 1 MILE VIS WITH RAIN AND FOG AND THUNDERSTORMS THROUGHOUT THE AREA. WITNESSES STATED THE RAIN VARIED FROM DRIZZLE TO VERY HEAVY. THE PILOT RECEIVED 3 BRIEFINGS FROM AFSS AND WAS FULLY AWARE OF THE CONDITIONS. HE HAD THE AUTHORITY TO REFUSE THE MISSION IF, IN HIS JUDGEMENT, THE WX WAS QUESTIONABLE OR UNACCEPTABLE. THE HOSPITAL HAD WRITTEN PROCEDURES FOR INADVERTENT FLIGHT INTO IMC WHICH THE PLT DID NOT FOLLOW. RECORDS FAIL TO INDICATE THAT THE PILOT HAD REVIEWED THESE PROCEDURES NOR DO THEY INDICATE THAT THE PILOT HAD RECEIVED ANY IFR TRAINING DURING HIS 1 MONTH EMPLOYMENT.
NTSB Probable Cause
THE PILOT'S FAILURE TO EXECUTE THE PUBLISHED INADVERTENT IMC PROCEDURES WHEN HE ENCOUNTERED ADVERSE WEATHER CONDITIONS.
Full Narrative
THE ACFT CRASHED AFTER CONTACTING 70' TALL HIGH TENSION POWER LINES WHILE ON A NIGHT NON-EMERGENCY EMS MISSION. ACCORDING TO WITNESSES, WX WAS IMC WITH LOW OVC CEILINGS, 1/4 TO 1 MILE VIS WITH RAIN AND FOG AND THUNDERSTORMS THROUGHOUT THE AREA. WITNESSES STATED THE RAIN VARIED FROM DRIZZLE TO VERY HEAVY. THE PILOT RECEIVED 3 BRIEFINGS FROM AFSS AND WAS FULLY AWARE OF THE CONDITIONS. HE HAD THE AUTHORITY TO REFUSE THE MISSION IF, IN HIS JUDGEMENT, THE WX WAS QUESTIONABLE OR UNACCEPTABLE. THE HOSPITAL HAD WRITTEN PROCEDURES FOR INADVERTENT FLIGHT INTO IMC WHICH THE PLT DID NOT FOLLOW. RECORDS FAIL TO INDICATE THAT THE PILOT HAD REVIEWED THESE PROCEDURES NOR DO THEY INDICATE THAT THE PILOT HAD RECEIVED ANY IFR TRAINING DURING HIS 1 MONTH EMPLOYMENT.
Flight
Event TypeAccident
Event Time22:17 CST
Nearest Airport0nm N
Runway0
Flight Plan FiledNone
Aircraft FireGrd
Aircraft ExplosionNo
Aircraft
AircraftMbb BK-117 A-1
Tail NumberN7025L
Aircraft CategoryHeli
DamageDestroyed
OperatorU S Jet
Operating RulePart 135
Engines2
Engine TypeTurboshaft
Engine DetailsLycoming · LTS-101650B-1 · Turboshaft · 650
Seats3
People & Injuries
Injury Summary3 injuries (3 fatalities)
Fatal3
Serious0
Minor0
Uninjured0
Total3
Crew 1Age 45 · First Class
Conditions
ConditionsIMC
LightDark Night
Wind330° @ 12 kt
Visibility1 sm
CeilingOvercast 1200 ft
Temperature / Dew Point61 F / 61 F
Altimeter29.00 inHg
Observation Time04:45
Weather SourceWFAC