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FedEx 1420 - tailstrike at DEN

FedEx 1420 reports a hard landing and potential tailstrike at Denver International Airport.

2013-01-25 Denver International Airport (DEN), Colorado

Summary

FedEx 1420, a heavy cargo aircraft, experienced a hard landing on Runway 17 Right at Denver International Airport. After the landing, air traffic control inquired about a possible tailstrike, leading the pilot to confirm a "hard hit" and request a runway inspection. The incident resulted in the immediate closure of the runway and the diversion of following traffic.

Analysis

This recording captures the immediate aftermath of a tailstrike incident involving a FedEx heavy aircraft (likely an MD-11, given the flight number and aircraft's reputation for sensitive landing pitch). A tailstrike occurs when the aft fuselage of an airplane contacts the runway during takeoff or landing. In this case, the controller noticed something unusual enough to proactively ask the pilots if a tailstrike was "possible." The pilots admitted to a "hard hit," which is a significant admission in aviation, indicating the landing forces exceeded normal parameters.

The exchange is a textbook example of airport safety procedures. Once a tailstrike is suspected, the runway must be closed immediately for a "FOD" (Foreign Object Debris) inspection. This is crucial because a tailstrike can shave off metal, break light fixtures, or leave structural components on the runway, which could be ingested by the engines of a subsequent aircraft. The recording shows the Tower controller coordinating with "Ops 7" (Airport Operations) to shut down the runway within seconds of the landing.

For non-experts, it is notable how calm the pilots and controllers remain. Despite the potential for significant structural damage to a multi-million dollar aircraft, the communication remains professional and focused on the safety of other flights. The controller quickly redirects the following aircraft, FedEx 1728, to an adjacent runway to maintain the flow of traffic while the primary runway is inspected.

The significance of this event lies in the MD-11's history; the aircraft is known for being difficult to land due to its high approach speed and sensitive elevators. Tailstrikes on this airframe often require extensive structural repairs and inspections of the rear pressure bulkhead to ensure the aircraft remains pressurized and airworthy in future flights.

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Original ATC Communication

Plain English Translation

FEDEX 1420
Denver Tower, FedEx 1420 Heavy with you on the visual left base for Runway 17 Right.
FEDEX 1420
Denver Tower, this is the large FedEx 1420. We have the airport in sight and we’re turning onto the final approach for the right-hand runway 17.
ATC
FedEx 1420 Heavy, Denver Tower. Good morning. Wind 160 at 15. Runway 17 Right, cleared to land.
ATC
FedEx 1420, Denver Tower. Good morning. The wind is coming from the south at 15 knots. You are officially cleared to land on runway 17 Right.
FEDEX 1420
Cleared to land, 17 Right, FedEx 1420 Heavy.
FEDEX 1420
We're cleared to land on 17 Right, FedEx 1420.
ATC
FedEx 1420 Heavy, Denver Tower.
ATC
FedEx 1420, this is the Denver Tower.
FEDEX 1420
Go ahead.
FEDEX 1420
Go ahead, we're listening.
ATC
Turn right at the high-speed taxiway via Mike and enter Rapid here at Charlie.
ATC
Turn right at the upcoming fast-exit taxiway onto path Mike, then enter the Rapid area at taxiway Charlie.
FEDEX 1420
Okay, right at the high-speed and taxi via Mike for FedEx 1420 Heavy.
FEDEX 1420
Okay, taking the right at the fast exit and then onto taxiway Mike, FedEx 1420.
ATC
Ops 7, Denver Tower.
ATC
Airport Operations Unit 7, this is Denver Tower.
OPS 7
Denver Tower, Ops 7. Go ahead.
OPS 7
Denver Tower, this is Operations 7. What do you need?
FEDEX 1728
Denver Tower, FedEx 1728 Heavy. We’re with you on the visual 17 Right. Have you heard anything?
FEDEX 1728
Denver Tower, this is FedEx 1728. We’re a large plane approaching runway 17 Right with the field in sight. Are there any updates on the situation ahead of us?
ATC
FedEx 1420 Heavy, possible tail strike on landing? Is that possible?
ATC
FedEx 1420, is it possible your tail hit the ground during that landing? Did that happen?
FEDEX 1420
1420 Heavy. We did hit hard. We’re not sure if we had a tail strike. You might have someone go out and look at the runway.
FEDEX 1420
This is 1420. We definitely slammed it down hard. We aren't positive if the tail struck the pavement, but you should probably send a crew out to check the runway for debris.
ATC
Ops 7, did you hear that?
ATC
Operations 7, did you hear that pilot's report?
OPS 7
Denver Tower, Ops 7 copies. We’re on the way. Please close 17 Right for inspection.
OPS 7
Denver Tower, Operations 7 acknowledges. We are heading out there now. Please stop all traffic on runway 17 Right so we can inspect it.
ATC
Ops 7, Roger. We’ll show Runway 17 Right closed at this time for inspection.
ATC
Operations 7, understood. We are officially marking runway 17 Right as closed for inspection starting now.
ATC
FedEx 1728 Heavy, Denver Tower, are you on frequency?
ATC
FedEx 1728, this is the Denver control tower, are you listening to this channel?
FEDEX 1728
On 17 Right.
FEDEX 1728
We’re lined up for the right-hand runway, 17.
ATC
FedEx 1728 Heavy, Roger. Just closed Runway 17 Right—company had a possible tail strike. Can you take Runway 16 Left, just to your right there, at the midpoint of that runway? Thanks.
ATC
Copy that, FedEx 1728. I just had to close that runway—another one of your company's planes might have scraped its tail on the ground. Can you switch to the left-hand runway 16? It’s just to your right, and you can enter halfway down. Thanks.
FEDEX 1728
I can do that, FedEx 1728 Heavy.
FEDEX 1728
We can do that, FedEx 1728.
ATC
FedEx 1728 Heavy, Roger. Cleared visual approach Runway 16 Left. Runway 16 Left, cleared to land. Wind 140 at 17.
ATC
Understood, FedEx 1728. You're authorized to approach the left-hand runway 16 by sight. You are cleared to land on 16 Left. The wind is coming from the southeast at 17 knots.
FEDEX 1728
Cleared to land, 16 Left, FedEx 1728 Heavy.
FEDEX 1728
Cleared to land on the left-hand runway 16, FedEx 1728.

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