19990924027829A

Accident · Substantial damage

FAA accident report · Maule M-4 · Anchorage, AK · September 24, 1999

Date
September 24, 1999 · 13:06 local
Place
Anchorage, AK
Airport
Lake Hood Strip Airport
Phase of flight
Takeoff Ground Roll
Operating rules
General operating rules (Part 91)
Damage
Substantial damage
Aircraft
N4623T
NTSB investigation
NTSBANC99LA152
Reported as
Maule M4
Reported engine
Continental O300A
Fatal injuries
0
Pilot’s flight hours
15,000 total2 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.

(.19) On September 24, 1999, at 1306 Alaska daylight time, a Maule ML-4 airplane, N4623T, sustained substantial damage when it nosed over during takeoff from the lake Hood strip, Anchorage, Alaska. The solo airline transport pilot received minor injuries. The flight was being operated under 14 CFR part 91 as a local area, visual flight rules (VFR), postmaintenance check flight. Visual meteorological conditions prevailed at the time of the accident. No flight plan was filed. According to the FAA inspector who interviewed the pilot, and inspected the airplane at the scene, the pilot was beginning the first flight after rebuilding the airplane. The pilot indicated to the inspector, that as the airplane began to fly off the runway, he pulled aft on the yoke, and the airplane nosed over. The faa's inspection revealed the elevator cables were connected backwards. The pilot told the NTSB investigator-in-charge (iic) during a telephone interview on September 27, that he bought the airplane as a project and rebuilt it. He stated that during the rebuild he hooked up the elevator cables backwards, and did not recognize the error during his inspection. He added that he did not have an oone else inspect his work. He indicated that he was beginning the takeoff on the first test flight, and as soon as he pulled aft on the yoke, the airplane nosed over. The airplane came to rest inverted, and sustained substantial damage to both wings, the vertical stabilizer, and the left wing lift-strut. (-23) elevator cables were crossed at elevator which caused the elevators to work backwards. (.4) the pilot was beginning the first postmaintenance check flight after rebuilding the airplane. As the airplane began to fly off the runway, the pilot pulled aft on the yoke, and the airplane nosed over. Postaccident inspection revealed the elevator cables were connected backwards. The pilot, who is also a certificated aircraft mechanic, told the NTSB investigator-in-charge that he bought the airplane as a project and rebuilt it. He stated he hooked up the elevator cables backwards, and did not recognize the error during his inspection. He added that he did not have anyone else inspect his work.

As the FAA filed it

(.19) ON SEPTEMBER 24, 1999, AT 1306 ALASKA DAYLIGHT TIME, A MAULE ML-4 AIRPLANE, N4623T, SUSTAINED SUBSTANTIAL DAMAGE WHEN IT NOSED OVER DURING TAKEOFF FROM THE LAKE HOOD STRIP, ANCHORAGE, ALASKA. THE SOLO AIRLINE TRANSPORT PILOT RECEIVED MINOR INJURIES. THE FLIGHT WAS BEING OPERATED UNDER 14 CFR PART 91 AS A LOCAL AREA, VISUAL FLIGHT RULES (VFR), POSTMAINTENANCE CHECK FLIGHT. VISUAL METEOROLOGICAL CONDITIONS PREVAILED AT THE TIME OF THE ACCIDENT. NO FLIGHT PLAN WAS FILED. ACCORDING TO THE FAA INSPECTOR WHO INTERVIEWED THE PILOT, AND INSPECTED THE AIRPLANE AT THE SCENE, THE PILOT WAS BEGINNING THE FIRST FLIGHT AFTER REBUILDING THE AIRPLANE. THE PILOT INDICATED TO THE INSPECTOR, THAT AS THE AIRPLANE BEGAN TO FLY OFF THE RUNWAY, HE PULLED AFT ON THE YOKE, AND THE AIRPLANE NOSED OVER. THE FAA'S INSPECTION REVEALED THE ELEVATOR CABLES WERE CONNECTED BACKWARDS. THE PILOT TOLD THE NTSB INVESTIGATOR-IN-CHARGE (IIC) DURING A TELEPHONE INTERVIEW ON SEPTEMBER 27, THAT HE BOUGHT THE AIRPLANE AS A PROJECT AND REBUILT IT. HE STATED THAT DURING THE REBUILD HE HOOKED UP THE ELEVATOR CABLES BACKWARDS, AND DID NOT RECOGNIZE THE ERROR DURING HIS INSPECTION. HE ADDED THAT HE DID NOT HAVE AN OONE ELSE INSPECT HIS WORK. HE INDICATED THAT HE WAS BEGINNING THE TAKEOFF ON THE FIRST TEST FLIGHT, AND AS SOON AS HE PULLED AFT ON THE YOKE, THE AIRPLANE NOSED OVER. THE AIRPLANE CAME TO REST INVERTED, AND SUSTAINED SUBSTANTIAL DAMAGE TO BOTH WINGS, THE VERTICAL STABILIZER, AND THE LEFT WING LIFT-STRUT. (-23) ELEVATOR CABLES WERE CROSSED AT ELEVATOR WHICH CAUSED THE ELEVATORS TO WORK BACKWARDS. (.4) THE PILOT WAS BEGINNING THE FIRST POSTMAINTENANCE CHECK FLIGHT AFTER REBUILDING THE AIRPLANE. AS THE AIRPLANE BEGAN TO FLY OFF THE RUNWAY, THE PILOT PULLED AFT ON THE YOKE, AND THE AIRPLANE NOSED OVER. POSTACCIDENT INSPECTION REVEALED THE ELEVATOR CABLES WERE CONNECTED BACKWARDS. THE PILOT, WHO IS ALSO A CERTIFICATED AIRCRAFT MECHANIC, TOLD THE NTSB INVESTIGATOR-IN-CHARGE THAT HE BOUGHT THE AIRPLANE AS A PROJECT AND REBUILT IT. HE STATED HE HOOKED UP THE ELEVATOR CABLES BACKWARDS, AND DID NOT RECOGNIZE THE ERROR DURING HIS INSPECTION. HE ADDED THAT HE DID NOT HAVE ANYONE ELSE INSPECT HIS WORK.

NTSB investigation

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

Other reports on N4623T · 3

Matched to the same aircraft by N-number and date.