CEN11CA442

NTSB accident investigation · Schweizer 269C · Katy, TX · July 3, 2011

Accident · No injuriesData collectionFinal report
Date
July 3, 2011, 12:15 local (17:15 UTC)
Place
Katy, TX
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Maneuvering
Aircraft
N72DCSchweizer 269C
Defining event
Maneuvering: Loss of control in flight
Weather
Visual (VMC) · Day
Status
Completed · report November 22, 2011
Report
Approved by Office Director
NTSB office
Central Region
Parties
FAA FSDO
FAA report
20110703013639A
Case key
80966

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 maintain adequate rotor rpm during a low-altitude maneuvering flight.

Findings · 1

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.

Use of equip/infoPersonnel issues › Task performance · PilotSchweizer 269C: 1 caseAll 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

According to the pilot, during an aerial application flight, the helicopter pilot was flying between 6 and 7 feet above the ground, at an airspeed of 20 knots. While maneuvering, the pilot encountered a low rotor rpm situation and the helicopter started to settle. As soon as the helicopter descended, the landing skid became tangled in the rice plants, and the helicopter came to rest on its side. During the collision with terrain, the tail boom and main rotor separated from the fuselage. An examination of the helicopter and its systems revealed no preimpact mechanical failures or malfunctions.

Factual narrative

The helicopter pilot was flying between six and seven feet above the ground, at an airspeed of 20 knots, over a field of rice to cross-pollinate the crop. The pilot stated that he encountered a low rotor rpm situation and the helicopter started to settle. As soon as the helicopter descended, the landing skid became tangled in the rice plants, the helicopter impacted the rice field, and came to rest on its side. During the collision with terrain, the tail boom and main rotor separated from the fuselage. An examination of the helicopter and its systems, conducted by a Federal Aviation Administration inspector, revealed no preimpact mechanical failures or malfunctions.

Aircraft

Registration
N72DC
Reported as
Schweizer 269C
Category
Helicopter
Serial number
S1624
Airframe hours
2,094
Engine
Lycoming HIO-360 SER, 205 horsepower, reciprocating
Damage
Substantial damage
Flight
Other work use · Part 91
Operator
Dylan Aviation LLC
Registered owner
Dylan Aviation LLC
Airworthiness certificate
Standard, Normal
Last inspection
AAIP · June 29, 2011
Departed
Brookshire, TX
Destination
Brookshire, TX
Flight plan
Company VFR

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
31
Injuries
None
Certificates
Flight instructor, Commercial
Instrument ratings
Helicopter
Medical
Class 2, Without waivers/limitations
Last flight review
April 28, 2011
Seat
Left
Flight hours
337 total · 215 in this make and model · 282 as pilot in command · 130 in the last 90 days · 43 in the last 30 days · 2 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
Calm
Lowest ceiling
None
Temperature
93 °F, dew point 68 °F
Altimeter
29.98 inHg
Observed at
KSGR

Docket · 2

The files NTSB released with the investigation on August 22, 2011, on NTSB’s docket system: statements, records, photos and specialists’ reports. 1.3 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.