Accident Mitsubishi MU-300 N368PU,
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ASN Wikibase Occurrence # 367377
 
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Date:Friday 23 February 1990
Time:07:06 LT
Type:Silhouette image of generic MU30 model; specific model in this crash may look slightly different    
Mitsubishi MU-300
Owner/operator:Purdue Research Foundation
Registration: N368PU
MSN: A-068SA
Total airframe hrs:1612 hours
Engine model:P&W JT15D-4D
Fatalities:Fatalities: 0 / Occupants: 3
Aircraft damage: Substantial
Category:Accident
Location:Gary, IN -   United States of America
Phase: Landing
Nature:Executive
Departure airport:W Lafayette, IN (KLAF)
Destination airport:(KGYY)
Investigating agency: NTSB
Confidence Rating: Accident investigation report completed and information captured
Narrative:
THE FLT CREW BGN ARR AS SNW REMOVAL PSNL (SRP) WERE REMOVING SNW FM THE RWY (BFR DAYLIGHT & BFR THE TWR OPENED). THE ARPT MGR USED A LIGHT TO SIGNAL SRP TO CLR THE RWY. THE LCL TWR CTLR (LC), WHO WAS COMING ON DUTY, ESTABLISHED RADIO CTC WITH SRP TO ASSURE THE RWY WAS CLR. SRP INFORMED HIM THAT 50% OF THE RWY (NORTH OF THE CENTERLINE) WAS CLEARED OF SNW. THE LC RELAYED THE INFO TO THE FLT CREW & SUBSEQUENTLY CLRD THEM TO LND ON RWY 30. THE CAPT SAID HE LANDED ON THE CLRD PORTION OF THE RWY, BUT AVOIDED THE RGT EDGE 'WHERE SNOWBANKS COULD BE ASSUMED TO EXIST.' DRG THE LNDG ROLL, WITH THE LEFT WING EXTENDED OVER THE UNPLOWED PORTION OF THE RWY, THE OCCUPANTS FELT 'BUMPS' THAT THEY ATTRIBUTED TO ICE/SNOWON THE RWY. WHILE TAXIING OFF THE RWY, THE CAPT NOTICED THE LEFT WING HAD BEEN DAMAGED. AN INVESTIGATION REVEALED THE LEFT WING & FLAP HAD HIT A 1 TO 4 FT SNW RIDGE BETWEEN THE PLOWED & UNPLOWED PORTIONS OF THE RWY, WHICH WAS PARALLEL & ADJACENT TO THE RWY CENTERLINE.

Probable Cause: FAILURE OF SNOW REMOVAL PERSONNEL TO RECOGNIZE THE POTENTIAL HAZARD OF THE SNOW RIDGE ON THE RUNWAY AND COMMUNICATE THIS INFORMATION TO THE CONTROL TOWER. FACTORS RELATED TO THE ACCIDENT WERE: THE RUNWAY/TERRAIN/LIGHT CONDITIONS, AND FAILURE OF AIRPORT MANAGEMENT PERSONNEL TO IDENTIFY THE POTENTIAL HAZARDOUS CONDITION ON THE RUNWAY.

Accident investigation:
cover
  
Investigating agency: NTSB
Report number: CHI90LA088
Status: Investigation completed
Duration: 1 year and 10 months
Download report: Final report

Sources:

NTSB CHI90LA088

Revision history:

Date/timeContributorUpdates
22-Mar-2024 13:48 ASN Update Bot Added

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