LAX06LA246

NTSB accident investigation · Cessna 177B · Kalaupapa, HI · July 28, 2006

Accident · FatalLimited investigationFinal report
Date
July 27, 2006, 20:54 local (Jul 28, 2006, 06:54 UTC)
Place
Kalaupapa, HI
Injuries
2 fatal
Damage
Destroyed
Phase of flight
Enroute
Aircraft
N30652Cessna 177B
Weather
Visual (VMC) · Night/dark
Status
Completed · report November 29, 2007
Report
Approved by Office Director
Parties
Honolulu Flight Standards District Office
FAA report
20060727016419A
Case key
64239

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

Loss of aircraft control during cruise flight for undetermined reasons. Clouds, rain, and dark night conditions were factors.

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 control - in flightCruise
Reason for occurrence undeterminedCause
Weather condition - cloudsFactor
Weather condition - rainFactor
Light condition - dark nightFactor
In flight collision with terrain/waterDescent - uncontrolled
Terrain condition - water

Analysis

Radar data, obtained from the U.S. Navy's Fleet Area Control & Surveillance Facility (FACSFAC), revealed that the airplane departed HNL and proceeded east toward Molokai. According to the radar data, the aircraft maintained an approximate altitude of 5,000 feet mean sea level (msl) and an approximate groundspeed of 90 knots for 23 minutes prior to the accident. Radar data shows the aircraft passed the Kalaupapa peninsula eastbound, and then changed directions several times, but still maintained altitude and groundspeed. At 20:53:06, the radar return depicted the airplane at 5,100 feet msl approximately 1 mile north of the shoreline near Kapailoa Point. The next radar return, at 20:53:16, depicted the airplane at 3,700 feet msl with a 50-knot groundspeed, northeast of the previous return. At 20:53:28, the airplane's radar return depicted it at 1,400 feet msl with a 30-knot groundspeed, southwest of the last return. At 20:53:40, the radar return denoted the airplane at 200 feet msl in the same location. The last return was obtained at 20:53:57 with an altitude of 0 feet msl, at 21:11:19 north latitude and 156:53:54 west longitude. The FACSFAC radar data revealed two lines of heavy returns over the island of Molokai. According to radar facility personnel, the lines depicted areas of heavy precipitation. Witnesses located at a private residence near Kapailoa Point reported that it was very dark, there were thick clouds in the area, and it was raining. A witness observed airplane lights descending from the base of the clouds at a very rapid descent rate. The witness noted that the airplane lights were wobbling (rotating one over the other) and the engine was revving loudly. The airplane lights disappeared behind a ridgeline and the witness did not observe impact. The witness added that the weather had been clear earlier in the evening, but the rainy weather had moved in rapidly and then dissipated shortly after the accident. To date, no aircraft wreckage has been recovered, therefore the reason for the loss of aircraft control was not determined.

Factual narrative

On July 27, 2006, at 2054 Hawaiian standard time, a Cessna 177B, N30652, impacted the Pacific Ocean about 6 miles northeast of Kalaupapa on Molokai, Hawaii. The airplane sank and is presumed destroyed. The airplane was registered to, and operated by, Anderson Aviation, Inc. of Honolulu, Hawaii, as an instructional flight under the provisions of 14 CFR Part 91. The certified flight instructor (CFI) and the pilot receiving instruction (PRI) are presumed fatally injured. Dark night visual meteorological conditions prevailed for the majority of the cross-country flight. The flight departed Honolulu International Airport (HNL), Honolulu, Hawaii at 2005, and was destined for Hana Airport (HNM), Hana, Hawaii. A flight plan was not filed, but the accident flight was receiving flight following services from HNL Air Route Traffic Control Center.

According to the operator, the PRI was enrolled in their 14 CFR Part 141 commercial pilot flight training program. The operator reported that the CFI and the PRI arrived at the flight school after normal business hours and dispatched the airplane themselves. According to the Federal Aviation Administration, the pilots obtained a weather briefing from the HNL Flight Service Station (FSS) prior to departing on the flight.

Radar data, obtained from the U.S. Navy's Fleet Area Control & Surveillance Facility (FACSFAC), revealed that the airplane departed HNL and proceeded east toward Molokai. According to the radar data, the aircraft maintained an approximate altitude of 5,000 feet mean sea level (msl) and an approximate groundspeed of 90 knots for 23 minutes prior to the accident. Radar data shows the aircraft passed the Kalaupapa peninsula eastbound, and then changed directions several times, but still maintained altitude and groundspeed. At 20:53:06, the radar return depicted the airplane at 5,100 feet msl approximately 1 mile north of the shoreline near Kapailoa Point. The next radar return, at 20:53:16, depicted the airplane at 3,700 feet msl with a 50-knot groundspeed, northeast of the previous return. At 20:53:28, the airplane's radar return depicted it at 1,400 feet msl with a 30-knot groundspeed, southwest of the last return. At 20:53:40, the radar return denoted the airplane at 200 feet msl in the same location. The last return was obtained at 20:53:57 with an altitude of 0 feet msl, at 21:11:19 north latitude and 156:53:54 west longitude.

The FACSFAC radar data revealed two lines of heavy returns over the island of Molokai. According to radar facility personnel, the lines depicted areas of heavy precipitation.

Witnesses located at a private residence near Kapailoa Point reported that it was very dark, there were thick clouds in the area, and it was raining. A witness observed airplane lights descending from the base of the clouds at a very rapid descent rate. The witness noted that the airplane lights were wobbling (rotating one over the other) and the engine was revving loudly. The airplane lights disappeared behind the ridgeline and the witness called the U.S. Coast Guard to report what he had seen. The witness added that the weather had been clear earlier in the evening, but the rainy weather had moved in rapidly and then dissipated shortly after the accident. No witnesses observed the aircraft impacting the ocean.

Search efforts were initiated shortly after receiving the witness report, and after air traffic controllers noted the airplane disappeared from radar contact. The search effort resulted in no sightings and was ended on July 29, 2006.

To this date, no wreckage has been located.

Aircraft

Registration
N30652
Reported as
Cessna 177B
Category
Airplane
Serial number
17701385
Airframe hours
8,657.5
Engine
Lycoming O-360-A1F6, 180 horsepower, reciprocating
Damage
Destroyed
Flight
Instructional · Part 91
Operator
Anderson Aviation, Inc.
Registered owner
Anderson Aviation Inc.
Airworthiness certificate
Standard, Normal
Last inspection
100 hour · March 1, 2006
Departed
HNL · Honolulu, HI
Destination
HNM · Hana, HI
Airport
Off Airport

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
25
Injuries
Fatal
Certificates
Commercial, Flight instructor
Airplane ratings
Multi-engine land, Single-engine land
Instrument ratings
Airplane
Medical
Class 1, Without waivers/limitations
Last flight review
January 1, 2006
Seat
Right
Flight hours
770 total · 630 as pilot in command
Role
Student pilot
Age
23
Injuries
Fatal
Certificate
Private
Airplane ratings
Single-engine land
Instrument ratings
Airplane
Medical
Class 1
Last flight review
March 1, 2006
Seat
Left
Flight hours
158 total · 113 as pilot in command

Weather

Conditions
Visual (VMC) · Night/dark
Wind
50° at 12 knots, gusting 19
Visibility
10 statute miles
Lowest ceiling
None
Temperature
75 °F, dew point 66 °F
Altimeter
29.97 inHg
Observed at
HMK, 11 nm away

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 N30652 · 1

Matched to the same aircraft by N-number and date.