ASN Wikibase Occurrence # 42746
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| Date: | Friday 14 April 1995 |
| Time: | 14:25 |
| Type: |  Beechcraft V35B Bonanza |
| Owner/operator: | Private |
| Registration: | N1HK |
| MSN: | D-9960 |
| Fatalities: | Fatalities: 4 / Occupants: 4 |
| Aircraft damage: | Destroyed |
| Category: | Accident |
| Location: | Oshkosh, WI -
 United States of America
|
| Phase: | Approach |
| Nature: | Private |
| Departure airport: | Delevan, WI (C59) |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
AT 1417:23 CDT, THE PILOT OF CESSNA 150, N45457, CONTACTED THE TOWER AND REPORTED THAT HE WAS 12 MILES SOUTHWEST OF THE AIRPORT AND INBOUND (FOR LANDING). THE TOWER CONTROLLER (CTLR) CLEARED THE PILOT TO ENTER A LEFT BASE FOR RUNWAY 36 AND TOLD HIM TO REPORT 3 MILES SOUTHWEST (OF THE AIRPORT). AT 1419:30, BEECH V35B, N1HK, CONTACTED THE TOWER AND REPORTED INBOUND, 18 MILES SOUTH (FOR LANDING). THE CTLR CLEARED THE V35B (TO CONTINUE) FOR A STRAIGHT-IN APPROACH TO RUNWAY 36 (BUT DID NOT CLEAR THE V35B TO LAND). ONE OF THE V35B PILOTS ACKNOWLEDGED THE CALL, THEN THERE WAS NO FURTHER COMMUNICATION WITH THE V35B. AT 1422:54, THE CESSNA PILOT REPORTED THAT HE WAS 3 MILES SOUTHWEST 'STARTING A BASE' AND WAS CLEARED TO LAND. THE TOWER WAS NOT EQUIPPED WITH A D-BRITE SCOPE (RADAR SCREEN REPEATER); BUT LATER, RADAR NTAP DATA AT THE GREEN BAY STATION REVEALED THAT THE TWO AIRPLANES CONVERGED AS THEY WERE ON FINAL APPROACH TO LAND. THE V35B WAS ABOUT 800' ABOVE AND SLIGHTLY BEHIND THE CESSNA AS THE CESSNA BEGAN ITS FINAL APPROACH. THE ACCIDENT OCCURRED AFTER THE AIRPLANES TRAVELED ABOUT 1500' BEYOND THE RUNWAY THRESHOLD. JUST BEFORE IMPACT, THE CESSNA BANKED RAPIDLY TO THE RIGHT, BUT ITS LEFT WING AND THE V35B'S LOWER FUSELAGE COLLIDED. THE TWO AIRPLANES THEN CRASHED. THE CTLR SAID THAT HE DID NOT SEE THE V35B AFTER CLEARING THE CESSNA TO LAND. A SECOND CTLR WAS ON DUTY, BUT WAS ON A RELIEF BREAK WHEN THE ACCIDENT OCCURRED. THE CTLRS SAID THAT THE TOWER CAB WINDOW HAD REFLECTIVE GLARE THAT CONSTITUTED A HINDRANCE. THE WORKING CTLR WAS HANDLING NINE AIRPLANES WHEN THE ACCIDENT OCCURRED. CAUSE: INADEQUATE VISUAL LOOKOUT BY THE PILOT OF THE BEECH V35B, RESULTING IN HIS FAILURE TO SEE-AND-AVOID THE CESSNA 150, WHICH WAS AHEAD AND BELOW HIM ON FINAL APPROACH; AND FAILURE OF THE TOWER CONTROLLER TO PROVIDE ADEQUATE SERVICE (FLIGHT ADVISORIES AND LANDING SEQUENCE) TO THE PILOTS OF THE CESSNA 150 AND BEECH V35B. FACTORS RELATING TO THE ACCIDENT WERE: INADEQUATE AIR-TO-GROUND COMMUNICATION BY THE BEECH V35B PILOT, BY FAILING TO NOTIFY THE TOWER THAT HE WAS ON FINAL APPROACH, AND BY FAILING TO OBTAIN A CLEARANCE TO LAND; FAILURE OF THE TOWER CONTROLLER TO VISUALLY IDENTIFY THE BEECH V35B; EXCESSIVE WORKLOAD FOR THE TOWER CONTROLLER; AND POSSIBLE GLARE FROM THE WINDOWS OF THE TOWER CAB (OTHER LIGHT CONDITION).
Sources:
NTSB: http://www.ntsb.gov/ntsb/brief.asp?ev_id=20001207X03249
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 24-Oct-2008 10:30 | ASN archive | Added |
| 21-Dec-2016 19:24 | ASN Update Bot | Updated [Time, Damage, Category, Investigating agency] |
Corrections or additions? ... Edit this accident description
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