ERA12LA450

NTSB accident investigation · Beech A36 · Johns Island, SC · July 9, 2012

Accident · No injuriesLimited investigationFinal report
Date
July 9, 2012, 10:25 local (14:25 UTC)
Place
Johns Island, SC
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N6672BBeech A36
Defining event
Landing-flare/touchdown: Landing gear not configured
Weather
Visual (VMC) · Day
Status
Completed · report August 13, 2013
Report
Approved by Office Director
NTSB office
Eastern Region Aviation
Parties
FAA/FSDO
FAA report
20120709014419A
Case key
84315

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

On this page

Probable cause

The pilot's failure to complete the manual emergency gear extension after a loss of electrical power. Contributing to the accident was the pilot's decision to delegate the landing gear extension to a non-pilot-rated passenger.

Findings · 6

NTSB’s coded findings. Those marked are part of the probable cause; the rest are factors or other findings. Under each, the cases with the same finding.

Landing gear system: gear extension and retract sysAircraft › Aircraft systems · Incorrect use/operationBeech A36: 8 casesAll aircraft: 416 casesProbable cause
Use of equip/info: use of policy/procedurePersonnel issues › Task performance · PilotBeech A36: 1 caseAll aircraft: 191 casesProbable cause
Performance/control parameters: configurationAircraft › Aircraft oper/perf/capability · Not attained/maintainedBeech A36: 1 caseAll aircraft: 80 casesProbable cause
Use of equip/infoPersonnel issues › Task performance · PassengerBeech A36: 2 casesAll aircraft: 111 casesProbable cause

Sequence of events

The events NTSB coded, in order, by phase of flight. The defining event is the one that best describes the accident. Under each, the cases with the same event anywhere in their sequence.

Analysis

The airplane was in cruise flight when it experienced symptoms of an electrical failure and the alternator "fail" light illuminated. A normal deployment of the landing gear was unsuccessful, so the pilot had the non-pilot-rated passenger review the manual gear extension procedure and then attempt to lower the gear. The pilot "confirmed" the landing gear handle would no longer rotate, but the electrical power loss precluded confirmation by the landing gear lights. The airplane completed a "no-bounce" landing and then settled to the runway on its belly, which resulted in substantial damage to airframe stringers and frames; the damage was consistent with the landing gear doors being closed during landing. According to a mechanic who supervised the recovery of the airplane from the runway, the airplane was resting on its belly with the landing gear retracted. He said the gear was "maybe 5 percent" deployed but remained retracted as the airplane was lifted with straps. Another mechanic entered the airplane, engaged the manual gear handle, and lowered the gear to the down and locked position. The battery master switch was turned on, and three green down-and-locked lights illuminated.

Factual narrative

On July 9, 2012, at 1025 eastern daylight time, a Hawker-Beechcraft A36, N6672B, was substantially damaged during a gear-up landing at Charleston Executive Airport (JZI), Charleston, South Carolina. The certificated airline transport pilot and his passenger were not injured. Visual meteorological conditions prevailed, and an instrument flight rules flight plan was filed for the flight, which departed Bartow Municipal Airport (BOW), Bartow, Florida, about 0820, and was destined for JZI. The personal flight was operated under the provisions of Title 14 Code of Federal Regulations Part 91. The pilot/owner was interviewed by a Federal Aviation Administration (FAA) inspector, and he also provided a written statement. He stated that the airplane was in cruise flight when it experienced symptoms of an electrical failure and the alternator "fail" light illuminated. A normal deployment of the landing gear was unsuccessful, so the pilot had the passenger review the manual gear extension procedure, and then attempted to extend the gear. The pilot "confirmed" the landing gear handle would no longer rotate, but the electrical power loss precluded confirmation by the landing gear lights. The airplane completed a "no-bounce" landing and then settled to the runway on its belly, which resulted in substantial damage to airframe stringers and frames. The pilot held multiple certificates and ratings, and was issued an FAA second class medical certificate on November 8, 2011. He reported 14,790 total hours of flight experience, 620 hours of which were in the accident airplane make and model. According to FAA and maintenance records, the airplane was manufactured in 1979 and had accrued 3,776 total aircraft hours. The airplane's most recent 100-hour inspection was completed on January 21, 2012 at 3,733 total aircraft hours. At 1015, the weather reported at JZI included clear skies and winds from 280 degrees at 9 knots. The temperature was 33 degrees C, the dew point was 23 degrees C, and the altimeter setting was 29.97 inches of mercury. According to a mechanic that supervised recovery of the airplane from the runway, the airplane rested on its belly with the landing gear retracted. He said the gear was "maybe 5 percent" deployed, but remained retracted as the airplane was lifted with straps. Another mechanic entered the airplane, engaged the manual gear handle, and lowered the gear to the down and locked position. The battery master switch was turned on, and three green down-and-locked lights illuminated. Examination of the airplane by an FAA inspector revealed damage consistent with the landing gear doors being closed during landing.

Aircraft

Registration
N6672B
Reported as
Beech A36
Category
Airplane
Serial number
E-1584
Airframe hours
3,776
Engine
Cont Motor IO 550-B, 300 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
Aircraft Engineering Inc
Registered owner
Aircraft Engineering Inc
Airworthiness certificate
Unknown
Last inspection
100 hour · January 21, 2012 · 43 hours before
Departed
BOW · Bartow, FL
Destination
KJZI · Johns Island, SC
Flight plan
IFR
Airport
KJZI · Charleston Executive Airport, runway 27, 5,350 × 100 ft, asphalt

Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
63
Injuries
None
Certificates
Commercial, Airline transport, Flight instructor
Airplane ratings
Multi-engine land, Single-engine sea, Single-engine land
Instrument ratings
Airplane, Helicopter
Medical
Class 2, With waivers/limitations
Last flight review
January 18, 2012
Seat
Left
Flight hours
14,790 total · 620 in this make and model · 14,500 as pilot in command · 36 in the last 90 days · 8 in the last 30 days · 2 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
288° at 9 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
91 °F, dew point 73 °F
Altimeter
29.96 inHg
Observed at
KJZI, 1 nm away

Docket · 6

The files NTSB released with the investigation on June 25, 2013, on NTSB’s docket system: statements, records, photos and specialists’ reports. 5.3 MB in all.

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.