- Date
- January 26, 2006, 10:25 local (16:25 UTC)
- Place
- Port Isabel, TX
- Injuries
- 2 uninjured
- Damage
- Substantial damage
- Phase of flight
- Landing
- Aircraft
- N911ESEurocopter France AS-350-B2
- Weather
- Visual (VMC) · Day
- Status
- Completed · report April 25, 2006
- Report
- Approved by Office Director
- Parties
- FAA Flight Standards District Office
- FAA report
- 20060126001819A
- Case key
- 63168
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 rotor RPM and his improper touchdown during a simulated hovering autorotation. A contributing factor was the flight instructor's delayed remedial action.
Sequence of events
NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.
Analysis
The 5,591-hour helicopter flight instructor reported that he was on the second day of training of a newly hired 10,000-hour commercial helicopter rated pilot. After the pilot's first landing on Runway 03 (4,999-feet long by 150-feet wide asphalt-concrete runway), the flight instructor asked the pilot to perform an Emergency Medical Service (EMS) takeoff (as described in the company's operations manual), and then enter the local traffic pattern. The flight instructor stated that the EMS takeoff procedure began by the pilot bringing the helicopter to a three to five foot hover in order to conduct a power check prior to the application of takeoff power. While the helicopter was at a hover, the flight instructor initiated a hovering autorotation; the pilot immediately applied forward cyclic, and then pulled up on the collective. The flight instructor considered the pilot's flight control inputs to be excessive, resulting in a high sink rate and an undesirable helicopter attitude for touchdown. The instructor immediately took control of the helicopter and brought it back to a level attitude in an attempt to cushion the landing. The flight instructor stated that the main rotor RPM was low and most of the collective had been used to prevent a nose low impact. The helicopter then descended approximately one to two feet, impacting terrain in a level attitude and then bounced forward approximately four feet.
Factual narrative
The 5,591-hour helicopter flight instructor reported he was on the second day of training of a newly hired 10,000-hour commercial helicopter rated pilot. After the pilot's first landing on Runway 03 (4,999-feet long by 150-feet wide asphalt-concrete runway), the flight instructor asked the pilot to perform an Emergency Medical Service (EMS) takeoff (as described in the company's operations manual), and then enter the local traffic pattern. The flight instructor stated that the EMS takeoff procedure began by the pilot bringing the helicopter to a three to five foot hover in order to conduct a power check prior to the application of takeoff power. While the helicopter was at a hover, the flight instructor initiated a hovering autorotation; the pilot immediately applied forward cyclic, and then pulled up on the collective. The flight instructor considered the pilot's flight control inputs to be excessive, resulting in a high sink rate and an undesirable helicopter attitude for touchdown. The instructor immediately took control of the helicopter and brought it back to a level attitude in an attempt to cushion the landing. The flight instructor stated that the main rotor RPM was low and most of the collective had been used to prevent a nose low impact. The helicopter then descended approximately one to two feet, impacting terrain in a level attitude and then bounced forward approximately four feet.
Aircraft
- Registration
- N911ES
- Reported as
- Eurocopter France AS-350-B2
- Category
- Helicopter
- Serial number
- 2665
- Airframe hours
- 5,997
- Engine
- Turbomeca Arriel 1D1, 712 horsepower, turbo shaft
- Damage
- Substantial damage
- Flight
- Instructional · Part 91
- Operator
- Frederick A. Rappleyea Jr.
- Registered owner
- Metro Aviation
- Airworthiness certificate
- Standard, Normal
- Last inspection
- AAIP · February 1, 2006
- Departed
- 78TS · Harlingen, TX
- Destination
- KPIL · Port Isabel, TX
- Flight plan
- Company VFR
- Airport
- KPIL · Port Isabel - Cameron County, runway 03, 4,999 × 150 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 · 2
As NTSB recorded them. NTSB leaves out names.
- Role
- Flight instructor
- Age
- 35
- Injuries
- None
- Certificates
- Airline transport, Flight instructor
- Airplane ratings
- Single-engine land, Multi-engine land
- Instrument ratings
- Airplane, Helicopter
- Medical
- Class 2, Without waivers/limitations
- Last flight review
- July 1, 2005
- Seat
- Left
- Flight hours
- 5,591 total · 1,671 in this make and model · 5,479 as pilot in command · 47 in the last 90 days · 18 in the last 30 days · 2 in the last 24 hours
- Role
- Student pilot
- Age
- 46
- Injuries
- None
- Certificate
- Commercial
- Airplane ratings
- Multi-engine land, Single-engine land
- Instrument ratings
- Helicopter, Airplane
- Medical
- Class 1, Without waivers/limitations
- Seat
- Right
- Flight hours
- 10,000 total
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- 50° at 3 knots
- Visibility
- 10 statute miles
- Lowest ceiling
- None
- Temperature
- 70 °F, dew point 55 °F
- Altimeter
- 30.36 inHg
- Observed at
- KPIL
FAA reports on this event · 1
The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.
Other investigations on N911ES · 1
Matched to the same aircraft by N-number and date.