LAX01LA008

NTSB accident investigation · Cessna 172H · Hilo, HI · October 7, 2000

Accident · No injuriesLimited investigationFinal report
Date
October 7, 2000, 10:30 local (20:30 UTC)
Place
Hilo, HI
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N3715RCessna 172H
Weather
Visual (VMC) · Day
Status
Completed · report November 28, 2001
Report
Approved by Office Director
FAA report
20001007041149A
Case key
50455

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

An inadvertent pilot-induced porpoise resulting from the pilot's improper landing flare and inadequate power management.

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.

Hard landingLanding - flare/touchdown
Flare - inadequatePilot in commandCause
Throttle/power control - improper use ofPilot in commandCause
Porpoise/pilot-induced oscillation - inadvertentPilot in command

Analysis

Witnesses saw the airplane touch down hard and porpoise three times during the student pilot's third landing on her first solo flight. The student pilot reported that during the initial touchdown she decreased the engine power too soon for the flare and hesitated too long. Thereafter, she should have increased engine power but said she forgot what to do. The airplane engine's firewall was found bent during a subsequent airframe inspection. The student pilot's total flight time was about 29 hours.

Factual narrative

On October 7, 2000, about 1030 hours Hawaiian standard time, a Cessna 172H, N3715R, operated by the pilot, made a hard landing on runway 03 at the Hilo International Airport, Hilo, Hawaii. Visual meteorological conditions prevailed during the solo instructional flight, and no flight plan was filed. The airplane was substantially damaged, and the student pilot was not injured. The flight was performed under 14 CFR Part 91, and it originated from Hilo about 1015.

In pertinent part, the student pilot reported that during the first touchdown she decreased the engine power too soon for the flare and hesitated too long. Thereafter, she should have increased engine power but forgot what to do. The airplane touched down two more times, and the third time was "harder than necessary (and) noises were heard."

According to the Federal Aviation Administration (FAA) coordinator, the pilot's certified instructor witnessed the accident. The CFI reported that the airplane touched down hard during the pilot's third landing on her first solo flight. Thereafter, the airplane porpoised about three times. The airplane's firewall was found bent during a subsequent inspection.

Aircraft

Registration
N3715R
Reported as
Cessna 172H
Category
Airplane
Serial number
17255515
Airframe hours
5,240
Engine
Continental O-300D, 145 horsepower, reciprocating
Damage
Substantial damage
Flight
Instructional · Part 91
Operator
Elizabeth S. Cossaboon
Registered owner
Merlin W. Dyball
Airworthiness certificate
Standard, Normal
Last inspection
Annual · March 22, 2000
Departed
ITO
Airport
ITO · Hilo International, runway 3, 5,600 × 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

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
34
Certificate
Student
Medical
Class 2, Valid Medical--no waivers/lim.
Seat
Left
Flight hours
29 total · 29 in this make and model · 11 in the last 90 days · 6 in the last 30 days · 3 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
60° at 9 knots
Visibility
10 statute miles
Lowest ceiling
8,000 ft broken
Temperature
178 °F, dew point 154 °F
Altimeter
30.00 inHg
Observed at
ITO

FAA reports on this event · 1

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