MIA06LA033

NTSB accident investigation · Piper PA-25-235 · Opa-Locka, FL · December 18, 2005

Accident · Minor injuriesLimited investigationFinal report
Date
December 18, 2005, 12:48 local (17:48 UTC)
Place
Opa-Locka, FL
Injuries
1 minor
Damage
Substantial damage
Phase of flight
Maneuvering
Aircraft
N86ABPiper PA-25-235
Weather
Visual (VMC) · Day
Status
Completed · report November 29, 2006
Report
Approved by Office Director
Parties
FAA Flight Standards District Office
FAA report
20051218030059A
Case key
62966

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

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Probable cause

The NTSB’s determination of the probable cause, and any contributing factors.

The failure of the pilot-in-command to maintain airspeed following a reported loss of engine power, resulting in a stall/mush, uncontrolled descent, and in-flight collision with terrain. Factors in the accident were the pilot's intentional operation of the airplane with known deficiencies (inoperative No. 3 banner release), and inadequate installation of the banner tow-release hook assembly by company maintenance personnel.

Analysis

Earlier that day, the pilot reportedly advised several company employees of a discrepancy with the No. 2 position tow-release hook; he was advised to use only the Nos. 1 and 3 positions. The flight departed for the first banner tow flight of the day, returned to the departure airport after flying the banner, dropped it, then picked up a second banner on the No. 3 position. He flew the banner then returned to the departure airport and dropped it with no reported discrepancies. A company employee reported that the pilot released the second banner late and after landing when asked why, the pilot advised him the No. 3 release wasn't working properly. The pilot installed banner tow hooks at the Nos. 1 and 3 positions, and departed to pick up a billboard using the No. 1 position but reported the airplane would not climb, and he released the banner. He then threw out the hook for the No. 3 position, and returned to pick-up the billboard which was set up for an easterly direction. He approached the location at 85 mph, and the climb-out, "...was even worse. I had no thrust or power at all, only the momentum carried me up to 200 [feet] where I leveled off with an airspeed of about 55 mph and noticed low oil pressure while losing altitude." He immediately pulled the No. 3 banner release handle but "everything came out the panel." He then felt "pulled by the tail with no thrust", and braced for impact on the airport property. No ground crew members reported hearing an engine discrepancy during the climb out. Postaccident examination of the airplane revealed the tow rope remained secured to the No. 3 tow-release hook. A safety link designed to break at 650 pounds was installed between the tow-release hook and the tow rope. The operator reported that the safety link will not break due to a "hot hook", or a banner dragging on the ground. Also, the No. 3 banner release handle/cable assembly was separated from the instrument panel and extended into the cockpit approximately 12 inches. The cable was not fractured; the cable housing was secured by a plastic tie-wrap near the pilot's seat, then by 3 adel clamps. The closest adel clamp to the cockpit was located approximately 10 feet aft of the plastic tie wrap. The cable housing was required to be clamped by 6 adel clamps. Postaccident operational testing of the engine revealed it produced approximately 2,400 rpm (near full static) with a serviceable propeller installed. The oil pressure was noted to be in the green arc when operating above 1,700 rpm, but was indicating low with the engine operating at 1,000 and 1,300 rpm. A METAR taken on the airport approximately 5 minutes after the accident indicates the wind was from 270 degrees at 7 knots, though the ground crew set up for an east approach. The operator's "Training Manual & General Operating Procedures" revealed that with respect to "Downwind Pickups", it states, "Downwind pickups are not to be attempted by any pilot at any time! Failure to abide by this rule will result in the pilots' immediate termination!" The training manual also indicates with respect to downwind pickups that if the wind direction changes and, "...your banner is no longer set up into the wind you must land, taxi to the banner area, and help the ground crew realign your banner for an upwind pickup."

Factual narrative

The factual narrative1,368 words

On December 18, 2005, about 1248 eastern standard time, a Piper PA-25-235, N86AB, registered to and operated by Aerial Banners, Inc., was substantially damaged during a forced landing shortly after a banner pick-up at Opa-Locka Airport, Opa-Locka, Florida. Visual meteorological conditions prevailed at the time and no flight plan was filed for the 14 CFR Part 91, local, banner tow flight from Opa-Locka Airport. The airplane was substantially damaged and the commercial-rated pilot, the sole occupant, sustained minor injuries. The flight originated about 15 minutes earlier from Opa-Locka Airport.

The pilot stated in writing that before the first flight of the day he mentioned to another employee of Aerial Banners, Inc., that he previously had a "hot hook" at the No. 2 position because it would not release. The other employee recommended that he use only the Nos. 1 and 3 positions. The pilot also reportedly brought this to the attention of another company employee who was busy but concurred with the recommendation to only use the Nos. 1 and 3 positions. He installed a grappling hook at all 3 positions, then departed and flew to the Opa-Locka Airport (KOPF) where he landed, and fueled the airplane. After fueling he checked the fuel tank and gascolator for contaminants; none were reported. The flight departed from KOPF, and picked up his first banner using the No. 1 position while on an east operation. He then flew the banner for approximately 30 minutes, returned to KOPF, dropped off the banner, then picked up his second banner with the No. 3 hook.

After flying the second banner he returned to KOPF, and dropped the banner installed at the No. 3 hook with no reported discrepancies. He then landed at KOPF, installed a grappling hook at the No. 1 position, and moved the grappling hook from the No. 2 position to the No. 3 position. He boarded the airplane, and noticed the right engine cowling was opened; another company employee secured it at his request. He performed an engine run-up before the flight departed; no discrepancies were reported.

After takeoff from runway 12, he tossed out the grappling hook installed at the No. 1 position, and picked up a "billboard", but the airplane would not climb after the pickup. He released the banner, and tossed out the grappling hook installed at the No. 3 position. He remained in the traffic pattern, and returned to pick-up the billboard but was advised that his approach speed appeared to be slow. He returned to pick-up the billboard, approached the east pick-up location at 85 miles-per-hour (mph), and the climb-out "...was even worse. I had no thrust or power at all, only the momentum carried me up to 200 [feet] where I leveled off with an airspeed of about 55 mph and noticed low oil pressure while losing altitude." He immediately pulled the No. 3 banner release handle but "everything came out the panel." He then felt "pulled by the tail with no thrust", and braced for impact. After impact he "woke up", released his restraint, exited the airplane, and was later taken to a hospital for examination. He later reported that at the time of the accident the wind was from the west, though he was picking up to the east, which was set up by the ground crew.

One company employee who was a witness to the accident reported that earlier that day, the pilot had trouble activating the No. 3 release which required him to use both hands. The employee inspected the No. 3 release and in his opinion it was not safe to use until after it was fixed. He attended to other duties and the accident pilot then departed and returned to pick up his next banner. The accident pilot's approach, altitude, and airspeed to pick-up the banner to him appeared fine initially, but immediately after he "pulled back to pick, I could tell that the planes nose was [too] high." The banner was pulled approximately 5 feet off the ground before it began to descent and drag on the ground. Other employee personnel advised the pilot to release the banner, which he did. The pilot returned to pick-up the same banner using the No. 3 position, and again his approach into the banner field, his altitude, and airspeed looked fine. He reported that at that time the engine sounded fine. He informed the pilot when the hook grabbed the rope between the pick-up poles and again noticed that the airplane was in a nose-high attitude, "...for [too] long and that it had not leveled out." He noticed that the airplane was sinking towards the ground and advised the pilot on the radio to drop the banner and to push the nose forward. When the banner rope became tight,, the banner began to drag on the ground. While still in a nose-high attitude, the airplane impacted the ground approximately 70 yards from the point where he was standing. He ran to the airplane which had nosed into the ground, and fire rescue responded shortly and took control of the situation.

Another company employee reported that when the accident pilot returned from a banner tow flight to drop the banner, he noticed that the flight was low and he advised the pilot to drop the banner. The banner dragged on the ground approximately 50 feet before it was released. The pilot landed and when the employee asked him why he had not dropped the banner when advised, the pilot responded that the No. 3 release "wasn't working properly." The accident pilot showed him "the release and it was hanging out." The accident pilot departed, returned to pick up the banner, and it appeared to him that "...when he picked he was too shallow so I told N86AB to climb." He then noticed that the billboard was falling and after seeing that the airplane was not climbing, he informed the pilot to release the banner. The banner was released and he asked the pilot what was wrong, the pilot replied the airplane would not climb. When the pilot flew westbound he heard a "brief popping sound." He asked the other company employee who was with him what that was and he responded that it was normal. The accident pilot returned to pick-up the banner and, "As he picked he looked like nose was very high and might flip the plane backwards. Then I saw N86AB start to level off and was falling when he did Chris told him to drop-drop-drop." At that time the banner was only 2-3 feet off the ground, and the accident airplane descended with the banner attached. The airplane, "...started to fall and veer off to the right or the south of the airport. I saw N86AB level off three times before hitting the ground."

Examination of the airplane by an FAA inspector revealed the No. 3 banner release handle/cable assembly was separated from the instrument panel and extended into the cockpit. The airplane was recovered for further examination.

NTSB review of photographs taken by the Miami-Dade Aviation Department of the airplane at the accident site revealed a tow rope remained connected to the No. 3 tow-release hook, which was displaced to the right approximately 55 degrees. A safety link was installed between the end of the tow rope and the hook that was connected to the No. 3 tow-release hook. NTSB examination of the airplane following recovery revealed the No. 3 banner release cable was not fractured; the release cable housing, cable, and handle extended into the cockpit approximately 12 inches. Further examination of the No. 3 banner release cable revealed the housing was secured by a plastic tie wrap to structural tubing near the pilots seat, and was next secured by a clamp approximately 10 feet later by the leading edge of the horizontal stabilator, again near the aft edge of the horizontal stabilator, and again near the midpoint of the elevator. The instrument panel adjacent to the nut used to secure the No. 3 banner release cable to the instrument panel was scratched around the nut. The Nos. 1 and 2 positions operationally checked good. None of the banner release cables were secured to structure forwar

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 flightManeuvering
External load release system - inoperative
Maintenance,installation - inadequateCompany maintenance personnelFactor
Operation with known deficiencies in equipment - intentionalPilot in commandFactor
Airspeed - not maintainedPilot in commandCause
Stall/mush - inadvertentPilot in command
In flight collision with terrain/waterDescent - uncontrolled
Terrain condition - ground

Aircraft

Registration
N86AB
Reported as
Piper PA-25-235
Category
Airplane
Serial number
25-3409
Airframe hours
6,759.57
Engine
Lycoming O-540-B2C5, 235 horsepower, reciprocating
Damage
Substantial damage
Flight
Banner tow · Part 91
Registered owner
Aerial Banners, Inc.
Airworthiness certificate
Special, Restricted (Special)
Last inspection
100 hour · October 1, 2005 · 91.67 hours before
Departed
KOPF · Opa-Locka, FL
Destination
KOPF
Airport
KOPF · Opa-Locka 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

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
36
Injuries
None
Certificates
Flight instructor, Commercial
Airplane ratings
Multi-engine land, Single-engine land
Instrument ratings
Airplane
Medical
Class 1, With waivers/limitations
Last flight review
July 1, 2005
Seat
Center
Flight hours
799 total · 11 in this make and model · 728 as pilot in command · 83 in the last 90 days · 38 in the last 30 days · 1 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
270° at 7 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
82 °F, dew point 68 °F
Altimeter
30.12 inHg
Observed at
KOPF

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 N86AB · 1

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