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Accidents · NTSB ANC08LA074 · Final report

Lake L-4 accident near Girdwood, Alaska, June 9, 2008

On June 9, 2008 at about 9:35 pm local time, a Lake L-4, registered N13RZ, was substantially damaged in an accident during initial climb near Girdwood, Alaska (Girdwood airport). It was a personal flight under general aviation rules (Part 91). No one was hurt; 2 people were on board or involved. The weather was visual conditions (good weather).

The NTSB's probable cause their words, unchanged

A partial loss of engine power for an undetermined reason, which resulted in a forced landing. Contributing to the accident was rough and uneven terrain.

Source: NTSB aviation accident database, copy made October 5, 2026. Docket and reports at the NTSB.

What the record shows

Date
June 9, 2008 · about 9:35 pm local time
Place
Girdwood, Alaska · Girdwood · map
Type
Accident
Injuries
No one was hurt; 2 people were on board or involved.
Weather
visual conditions (good weather)
Aircraft
Lake L-4
Registration
N13RZ · registry record · serial 57
Damage
Substantial damage
Flight
Personal flight · general aviation rules (Part 91)

The NTSB's narrative final · quoted from the NTSB record

During the initial climb after takeoff in an amphibious airplane on a personal flight, the pilot reported that as the airplane reached about 300 feet above ground level, the engine began to lose power. He said that the airplane was unable to climb, and that he selected an emergency landing spot in a creek about 3/4 mile south of the departure airport. The airplane received structural damage to the left wing, the hull, and the fuselage. After recovery, the airplane's engine and airframe were examined by two Federal Aviation Administration airworthiness inspectors. The engine was started and it ran at idle, but when full power was applied the engine rpm decreased from 2,600 to 2,200 after about 12 seconds. The engine fuel pressure remained within normal limits, and the magneto check was normal. No other mechanical malfunction was observed. The propeller governor and the engine-driven fuel pump were sent to their respective manufacturers for examination. No mechanical malfunction of either component was observed.

The complete narrative as the NTSB published it. The NTSB's docket holds the report as a PDF and any photographs, statements and other documents from the investigation.

The factual record from the NTSB's investigation tables, in plain English

What happened, in order

  1. Loss of engine power (partial) during initial climb defining event
  2. Off-field or emergency landing during emergency descent

The NTSB's findings

  • cause Not determined › Not determined › (general) › (general) › Unknown/Not determined
  • factor Environmental issues › Physical environment › Terrain › Rough terrain › Contributed to outcome
  • Aircraft › Aircraft power plant › Power plant › (general) › Not specified

Pilot

  • Certificate: private
  • Ratings: single-engine land; single-engine sea
  • Flight time: 1,107 hours in all; 502 in this make and model; 7 in the last 90 days; 2 in the last 30 days; 1,060 as pilot in command
  • Last flight review: October 27, 2007
  • Medical certificate: Class 3 (with waivers/limitations)
  • Seat: left
  • Injury: no injuries

The aircraft

  • Airframe total time: 2,454 hours
  • Last inspection: 100-hour inspection, May 31, 2008; 1 hours since
  • Maximum gross weight: 2,690 lb
  • Seats: 2
  • Landing gear: fixed
  • Engine: Lycoming IO-360 A1B (piston); 0 hours total

The flight

  • Departed from: AQY Girdwood AK at 4:35 pm
  • Destination: PAVD Valdez AK
  • Flight plan: VFR

Weather at the time

  • Light: daylight
  • Visibility: 10 statute miles
  • Sky: a few clouds
  • Temperature: 55°F (13°C), dew point 0°F (-18°C)
  • Altimeter: 30.04 inHg

Injuries

FatalSeriousMinorNone
Flight crew1
Passengers1

Documents from the investigation the NTSB's docket: the evidence folder behind the report

The docket, the folder of records gathered during an investigation (maintenance records, photographs, witness statements, examinations), has not been read from the NTSB for this case yet; the list appears here once it has. Open the docket at the NTSB.

Everything on this page comes from the NTSB's public records. The narrative, probable cause and findings are the NTSB's own words; the coded tables behind the report are written out in plain English, with pilots' ages, home towns and medical details left out. The documents and photographs are the NTSB's docket, shown as the NTSB released them. This site's own text never names anyone involved. A preliminary report can change; the final report usually follows one to two years later, and the page is refreshed when it does.