19980929027459A

Accident · Substantial damage

FAA accident report · Beech 35-B33 · Point Lookout, MO · September 29, 1998

Date
September 29, 1998 · 16:20 local
Place
Point Lookout, MO
Airport
M Graham Clark Airport
Phase of flight
Forced Landing
Operating rules
General operating rules (Part 91)
Damage
Substantial damage
Aircraft
N8946M
NTSB investigation
NTSBCHI98LA366
Reported as
Beech 35B33
Reported engine
Continental IO470K
People aboard
3
Fatal injuries
0
Pilot’s flight hours
1,312 total22 in this make and model22 in the last 90 days

From the FAA’s Accident/Incident Data System (AIDS), through its Aviation Safety Information Portal, as reported. The NTSB investigates accidents separately, and its record of an accident is the fuller one. The aircraft is matched to the registry by N-number and event date, checked against the reported make and model; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.

What happened

The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.

Acft experienced a loss of power on takeoff, returned to the aprt, and sustained substantial damage. (-23)the mixture control was improperly rigged. The pilot elected to attempt a second departure even after being told and shown the discrepancy with the mixture control. The pilot lost control of the aircraft in the final few seconds of the flight. (.4) the aircraft impacted terrain, while returning to runway 29 at m. Graham Clark airport, Point Lookout, Missouri, after experiencing a partial loss of engine power. The pilot reported that the mechanic, who inspected the mixture control, had replaced the outer mixture control clamps. The pilot also stated that the mechanic recommended to leave the control full rich until a mechanic could troubleshoot the reason that the control linkage allowed the mixture to go over center. The pilot stated that no paperwork was generated on the clamp replacement and that the mechanic did not want to charge for the work. The mechanic stated, that he had replaced a cable housing clamp and rigged the mixture control to the full rich stop. He also told the pilot that it was still not rigged correctly and would take a week to troubleshoot and repair. The mechanic further reported, that he showed the discrepancy to the pilot and told him he could do whatever he wanted to do. Inspection of the aircraft revealed that there was fuel present in both fuel tanks. Both magnetos were tested and no anomalies were noted. Inspection of the mixture control revealed that it was not traveling to the idle cut-off stop and that the full rich stop pin was not in place.

As the FAA filed it

ACFT EXPERIENCED A LOSS OF POWER ON TAKEOFF, RETURNED TO THE APRT, AND SUSTAINED SUBSTANTIAL DAMAGE. (-23)THE MIXTURE CONTROL WAS IMPROPERLY RIGGED. THE PILOT ELECTED TO ATTEMPT A SECOND DEPARTURE EVEN AFTER BEING TOLD AND SHOWN THE DISCREPANCY WITH THE MIXTURE CONTROL. THE PILOT LOST CONTROL OF THE AIRCRAFT IN THE FINAL FEW SECONDS OF THE FLIGHT. (.4) THE AIRCRAFT IMPACTED TERRAIN, WHILE RETURNING TO RUNWAY 29 AT M. GRAHAM CLARK AIRPORT, POINT LOOKOUT, MISSOURI, AFTER EXPERIENCING A PARTIAL LOSS OF ENGINE POWER. THE PILOT REPORTED THAT THE MECHANIC, WHO INSPECTED THE MIXTURE CONTROL, HAD REPLACED THE OUTER MIXTURE CONTROL CLAMPS. THE PILOT ALSO STATED THAT THE MECHANIC RECOMMENDED TO LEAVE THE CONTROL FULL RICH UNTIL A MECHANIC COULD TROUBLESHOOT THE REASON THAT THE CONTROL LINKAGE ALLOWED THE MIXTURE TO GO OVER CENTER. THE PILOT STATED THAT NO PAPERWORK WAS GENERATED ON THE CLAMP REPLACEMENT AND THAT THE MECHANIC DID NOT WANT TO CHARGE FOR THE WORK. THE MECHANIC STATED, THAT HE HAD REPLACED A CABLE HOUSING CLAMP AND RIGGED THE MIXTURE CONTROL TO THE FULL RICH STOP. HE ALSO TOLD THE PILOT THAT IT WAS STILL NOT RIGGED CORRECTLY AND WOULD TAKE A WEEK TO TROUBLESHOOT AND REPAIR. THE MECHANIC FURTHER REPORTED, THAT HE SHOWED THE DISCREPANCY TO THE PILOT AND TOLD HIM HE COULD DO WHATEVER HE WANTED TO DO. INSPECTION OF THE AIRCRAFT REVEALED THAT THERE WAS FUEL PRESENT IN BOTH FUEL TANKS. BOTH MAGNETOS WERE TESTED AND NO ANOMALIES WERE NOTED. INSPECTION OF THE MIXTURE CONTROL REVEALED THAT IT WAS NOT TRAVELING TO THE IDLE CUT-OFF STOP AND THAT THE FULL RICH STOP PIN WAS NOT IN PLACE.

NTSB investigation

The NTSB’s investigation of this event, with its probable cause and findings. Matched to this report by N-number and date.