N37741

HISTORY OF FLIGHT

On July 23, 2003, about 0852 Hawaiian standard time, a Bell 206B, N37741, descended into steep downsloping terrain in the inside crater wall of the Waialeale Crater, Kauai, Hawaii. The helicopter was owned and operated by Jack Harter Helicopters, Inc., Lihue, Hawaii. The commercial certificated pilot and the four fare-paying passengers were fatally injured, and the helicopter was destroyed. A company visual flight rules (VFR) flight plan was filed and opened with the operator. Visual meteorological flight conditions (VMC) prevailed during the initial portion of the flight. Instrument meteorological conditions (IMC) existed in the vicinity of the accident site. The on-demand air taxi (commercial air tour) flight was performed under the provisions of 14 CFR Part 135 and originated from the Lihue Airport (LIH) in Kauai about 0803.

The pilot's wife indicated to the National Transportation Safety Board investigator that the day and evening preceding the accident flight had been normal. Her husband was rested upon departing for work. The operator's general manager reported that the pilot arrived at work approximately 0630, performed a preflight inspection of the accident helicopter, and departed for his first Part 135 charter flight. The flight lasted about 20 minutes, and by 0745 the pilot landed back at LIH. Thereafter, the helicopter was refueled with 39 gallons of fuel.

Four fare-paying passengers boarded the helicopter, and they departed in VMC pursuant to company procedures for the planned 60 to 65-minute-long sightseeing tour flight over Kauai. No Federal Aviation Administration (FAA) facility reported hearing any radio transmissions from the pilot following his departure from LIH.

The operator reported that the pilot was authorized to vary the route of flight according to the weather and lighting conditions he might encounter. Tour flights typically travel over the Nawiliwili Harbor and then follow the Huleia River Valley to the west. The flights then proceed to the Hanapepe Valley, the Olokele Canyon, and the Waimea Canyon. After departing the Waimea Canyon, flights continue to the west and then traverse the Puu Ka Pele Forest Reserve to reach Na Pali, which is generally traversed from the southwest to the northeast. Most flights make a 360-degree turn in the vicinity of Ke'e Beach and then continue to Lumahai Beach where the flights head inland to Mt. Namolokama. The flights then follow the Hanalei River to the ridge that separates the Hanalei and Wailua drainages and cross the ridge and travel to the "North Wall" of Mt. Waialeale. Flights that occur during "normal" weather conditions usually enter the Waialeale Crater and fly below the orographic cloud layer into and out of the valley. Flights that occur in this area when the sky is clear often fly to the summit of Mt. Waialeale using a variety of paths. Many tour flights do not enter the Waialeale Crater. Tours then return to LIH via Wailua Falls.

A review of recorded radar data indicates that until the accident occurred, the pilot's route of flight was consistent with the aforementioned tour route. After departing LIH the pilot began a clockwise flight route around the island. The last radio transmission made by the accident pilot, which was heard by another of Jack Harter's tour pilots, indicated the accident pilot was in the vicinity of the Waialeale Crater. Jack Harter's pilot reported that the accident pilot made a position report of "741, north wall for the top." The transmission was made on a nonrecorded air-to-air aircraft radio frequency. According to Jack Harter's general manager, the pilot's statement indicated that he anticipated flying to the top of the Waialeale Crater.

A further review of recorded radar data for the accident time period indicates the presence of one aircraft in the crater. The Safety Board investigator's review of the radar data indicates that this aircraft's flight course was consistent with that of the accident helicopter. In pertinent part, at 0850, the helicopter had climbed from 3,700 to 4,600 feet, as indicated by its Mode C transponder. At 0851:57, the helicopter had climbed to 5,000 feet, which was the highest altitude recorded during the accident flight. Thereafter, the helicopter descended. The last radar hit was at 0852:11, at which time the helicopter had descended to 4,600 feet.

The operator reported the helicopter overdue when it failed to return to LIH. The FAA and local tour operators were notified of its overdue status, and a search commenced. The wreckage was found a few hundred feet (lateral distance) from its last recorded radar position.

PERSONNEL INFORMATION

Employment.

According to the general manager of Jack Harter Helicopters, Inc., the pilot was hired on August 9, 1995. Previously, the pilot had served 15 years in the U. S. Navy as a helicopter pilot. Jack Harter Helicopters is based on Kauai, and that is where the pilot resided and performed thousands of flights. The pilot was Jack Harter's Special Federal Aviation Regulation (SFAR 71) designated instructor pilot.

The pilot had satisfactorily completed an FAA administrated "Airman Competency/Proficiency" check flight in the accident helicopter on April 3, 2003, and he was accordingly permitted to perform on-demand air taxi flights under FAR Part 135. In pertinent part, on the check flight form the FAA indicated that the pilot was limited to flying under Part 135 to daytime VFR conditions.

Certification and Currency.

The pilot held a commercial pilot certificate, with rotorcraft-helicopter and instrument helicopter ratings. The FAA reported that he had no previous accident or enforcement history.

The operator indicated that of the pilot's 13,684 total hours of flight time, 13,567 hours were flown in rotorcraft, and 8,674 hours were flown in Bell 206B helicopters. The pilot's combined actual and simulated instrument experience was 780 hours. During the preceding 90 days, 30 days, and 24-hours, the pilot had flown 292, 81, and 6.7 hours, respectively.

According to the "Flight and Duty Record" provided by the operator, the pilot's flight and duty times for the 11 days preceding the accident indicated he was off duty and did not fly on July 12 or 13. He flew a total of 27.4 hours from July 14 to 18. He did not work or fly on July 19 or 20. He flew a total of 11.5 hours from July 21 to 22. His duty hours during these periods never began earlier than 0715, nor ended later than 1800.

Pilot Professionalism.

Company management and fellow company tour pilots knew the accident pilot's competency and professionalism. The following remark was made by a coworker: "I...knew him to be a very safe and professional pilot. He wasn't one to take chances...."

AIRCRAFT INFORMATION

The helicopter, serial number 1695, was manufactured in 1975, and was equipped with an Allison (Rolls-Royce) 250-C20B engine.

The helicopter was maintained on a program of FAA required 100-hour and annual inspections. In addition, the helicopter was maintained with additional required inspections following the Bell Helicopter Maintenance Manual, Revision 2, dated June 7, 2002. These inspections were performed at 300, 600 and 1200-hour intervals.

The last annual inspection was accomplished on June 3, 2003, at a total airframe time of 18,036.1 hours. The last 100-hour inspection was performed on July 8, 2003, at a total airframe time of 18,131.1 hours, and a Hobbs meter time of 5,099.6 hours. The Hobbs meter in the accident helicopter was observed at 5,138.7 hours.

At the time of the accident, the helicopter had flown about 39.1 hours since its last 100-hour inspection. The helicopter's total airframe time in service and engine time was about 18,170.2 and 17,345.4 hours, respectively.

The helicopter was not equipped with either a gyroscopic directional heading indicator, or an artificial horizon. There was no FAA requirement for either installation in this helicopter, which was not certified for flight into IMC.

The FAA participants' "Maintenance Report" did not indicate that any discrepancies were found during its review of the helicopter's maintenance records. Required inspections had been accomplished.

The last pilot to fly the helicopter prior to the accident reported that, on July 18, 2003, he flew it for 6.8 hours. The pilot reported to the Safety Board investigator that the helicopter "performed normally at all times and there were no discrepancies noted." The most recent maintenance record found in the accident helicopter was dated July 18, 2003, and was signed by the aforementioned pilot. No discrepancies or corrective actions were listed on the maintenance form bearing number 1319, which was a sequentially issued number imprinted on the document.

The operator reported that the accident helicopter was equipped with an aural engine-out warning system horn. According to Bell Helicopters Technical Bulletin No. 206-82-71, Rev. A, dated 11/10/1982, the horn does not function until N1 decreases to 55 percent.

METEOROLOGICAL INFORMATION

The closest aviation weather observation station to the accident site is located at LIH, elevation 153 feet mean sea level (msl). The airport is about 10.2 nautical miles (nm) east-southeast (113 degrees, magnetic) of the accident site. In part, at 0853, LIH reported its surface wind was from 060 degrees at 10 knots, 10 miles visibility, scattered clouds at 2,500 feet, temperature 27 degrees Celsius, dew point 21 degrees Celsius, and altimeter setting 30.04 inches of mercury.

Meteorological Report.

A Safety Board's meteorologist reviewed the weather conditions pertinent to the accident flight. The weather conditions were compared with the helicopter's flight track, as recorded by radar. The Safety Board's Meteorological Factual Report, included with this docket, indicates the following:

1. A northeasterly low-level airflow with...