- Date
- July 10, 2003, 08:00 local (15:00 UTC)
- Place
- Phoenix, AZ
- Injuries
- 1 uninjured
- Damage
- Substantial damage
- Phase of flight
- Landing
- Aircraft
- N787WWCessna 172S
- Weather
- Visual (VMC) · Day
- Status
- Completed · report November 25, 2003
- Report
- Approved by Office Director
- Parties
- FAA-SDL-FSDO
- FAA report
- 20030710036549A
- Case key
- 57608
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
The student's misjudged landing flare and inadvertent entry into a porpoise pilot-induced oscillation.
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.
Analysis
The airplane porpoised during landing. As a result, the firewall and engine mounts were bent. The student reported that he had been practicing maneuvers in the practice area and was returning to the airport to land. He extended his downwind leg due to traffic in the pattern and entered final approach "a little high." He "flared too high, slowed, and landed flat." Then, he "porpoised airplane and landed nose gear first on [the] second touchdown." He felt the damage occured on the second touchdown. He then performed a go-around, did a second go-around after being too high on final, and landed on the third approach without difficulty. The student did not report any mechanical difficulties with the airplane prior to the accident.
Factual narrative
On July 10, 2003, about 0800 mountain standard time, a Cessna 172S, N787WW, porpoised during landing at Deer Valley Airport (DVT), Phoenix, Arizona. As a result, the firewall and engine mounts were bent. Westwind Aviation was operating the airplane under the provisions of 14 CFR Part 91. The student was not injured; the airplane sustained substantial damage. Visual meteorological conditions prevailed during the local area instructional flight and no flight plan had been filed. The flight departed from Deer Valley at 0700.
In a written statement, the student reported that he had been practicing maneuvers in the practice area and was returning to Deer Valley to land. He extended his downwind leg due to traffic in the pattern and entered final approach "a little high." He "flared too high, slowed, and landed flat." Then, he "porpoised [the] airplane and landed nose gear first on [the] second touchdown." He felt the damage occured on the second touchdown. He then performed a go-around, did a second go-around after being too high on final, and landed on the third approach without difficulty. The student did not report any mechanical difficulties with the airplane prior to the accident.
Aircraft
- Registration
- N787WW
- Reported as
- Cessna 172S
- Category
- Airplane
- Serial number
- 17258589
- Airframe hours
- 2,086.7
- Engine
- Lycoming IO-360-L2A, 180 horsepower, reciprocating
- Damage
- Substantial damage
- Flight
- Instructional · Part 91
- Operator
- Westwind Aviation
- Registered owner
- Executives International Aviation, Inc.
- Airworthiness certificate
- Standard, Normal
- Last inspection
- Annual · June 30, 2003 · 40.2 hours before
- Departed
- KDVT · Phoenix, AZ
- Airport
- KDVT · Deer Valley, runway 7L
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
- Student pilot
- Age
- 54
- Injuries
- None
- Certificate
- Student
- Medical
- Class 3, Valid Medical--w/ waivers/lim
- Seat
- Left
- Flight hours
- 88 total · 88 in this make and model · 3 as pilot in command · 35 in the last 90 days · 10 in the last 30 days · 2 in the last 24 hours
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- Calm
- Visibility
- 10 statute miles
- Lowest ceiling
- None
- Temperature
- 90 °F, dew point 50 °F
- Altimeter
- 29.81 inHg
- Observed at
- KDVT
FAA reports on this event · 1
The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.