LAX00LA118

NTSB accident investigation · Arrow OH-58A · Calipatria, CA · March 8, 2000

Accident · Serious injuriesLimited investigationFinal report
Date
March 8, 2000, 12:15 local (20:15 UTC)
Place
Calipatria, CA
Injuries
1 serious
Damage
Substantial damage
Phase of flight
Initial climb
Aircraft
N39FAArrow OH-58A
Weather
Visual (VMC) · Day
Status
Completed · report December 6, 2002
Report
Approved by Office Director
Parties
FAA - FSDO
FAA report
20000308009309A
Case key
48784

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

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Probable cause

The pilot's inadequate checklist procedure prior to departure, which did not verify the fuel selector was in the proper position for flight, and the pilot's failure to maintain adequate main rotor speed for an autorotative landing.

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.

Loss of engine powerTakeoff - initial climb
Fuel system,fuel shutoff - closedCause
Fuel boost pump selector position - not correctedPilot in commandCause
Miscellaneous/otherManeuvering
Rotorcraft flight control - deterioratedCause
Cyclic - usedPilot in commandCause
Hard landingLanding - flare/touchdown
Adequate rotor rpm - not maintainedPilot in commandCause
Flare - not successful
Misc rotorcraft,tail boom - sheared

Analysis

The helicopter took off to the south and began a climb. Upon reaching about 60 feet above the ground, the helicopter lost power. At this time the helicopter was approaching power lines and the pilot used cyclic to climb over them. After clearing the wires, the pilot attempted an autorotative landing but there was insufficient main rotor speed to cushion the landing. The helicopter impacted the ground and the main rotor flexed severing the tail boom.

Factual narrative

On March 8, 2000, at 1215 hours Pacific standard time, an Arrow Falcon OH-58A, N39FA, experienced a power loss and made a forced landing while taking off at Calipatria, California. The helicopter sustained substantial damage and the certificated commercial pilot, the sole occupant, received serious injuries. The aircraft was being operated as an agricultural flight by Farm Air Services, Inc., under 14 CFR Part 137 when the accident occurred. The flight was originating from the Cliff Hatfield Memorial Airport at the time of the accident. Visual meteorological conditions prevailed at the time and no flight plan was filed.

Witnesses said the pilot was taking off to the south from the operator's ramp and had reached an altitude of about 60 feet agl when the power loss occurred. At the time, he was approaching utility lines at the field boundary and chose to make a cyclic climb in order to clear them. After clearing the lines, he attempted to make an autorotative landing but lacked sufficient main rotor rpm to decelerate and cushion the landing. The aircraft landed hard, bounced, and spun laterally. In the process, the main rotor blades flexed down and severed the tailboom.

The postcrash inspection revealed that the fuel selector had been in the off position. The fuel filter was opened and only about 4 ounces of fuel was found in the bowl, which normally holds about 20 ounces. There were no traces of fuel found in the high pressure fuel filter. Both the N1 and N2 turbines rotated freely. The pilot did not recall moving any switches or levers before exiting the helicopter.

A pilot/operator report of the accident on NTSB Form 6120.1/2 was not received.

Aircraft

Registration
N39FA
Reported as
Arrow OH-58A
Category
Helicopter
Serial number
71-20660
Airframe hours
4,685
Engine
Rolls-Royce T63A720, 317 horsepower, turbo shaft
Damage
Substantial damage
Flight
Aerial application · Part 137
Registered owner
James Pankratz
Airworthiness certificate
Special, Restricted (Special)
Departed
CLR · Calipatria, CA
Destination
CLR · Calipatria, CA
Airport
CLR · Cliff Hatfield Memorial, runway 8, 3,440 × 50 ft

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
45
Injuries
Minor
Certificate
Commercial
Medical
Unknown, Unknown
Last flight review
September 10, 1999
Flight hours
13,200 total · 1,200 in this make and model

Weather

Conditions
Visual (VMC) · Day
Wind
150° at 11 knots
Visibility
30 statute miles
Lowest ceiling
20,000 ft broken
Temperature
66 °F, dew point 41 °F
Altimeter
30.14 inHg
Observed at
IPL

FAA reports on this event · 1

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