12FTWI21-105 — Functional/operational Check Flight And High-speed Taxi Operations

12FTWI21-105 governs functional check flight and high-speed taxi operations for the 12th Flying Training Wing.

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  • Publication number: 12FTWI21-105
  • Title: FUNCTIONAL/OPERATIONAL CHECK FLIGHT AND HIGH-SPEED TAXI OPERATIONS
  • Date: 2025-07-01

View 12FTWI21-105 on armypubs.army.mil

It assigns responsibilities for maintenance, quality assurance, operations, and FCF pilots. It establishes procedures for aircraft preparation, documentation, HST checks, pilot training, currency, and recertification.

Topics covered

  • functional check flights
  • high-speed taxi checks
  • aircraft airworthiness
  • FCF pilot training
  • FCF pilot currency
  • FCF pilot recertification

Questions and answers

When are high-speed taxi checks used?

HST checks may be utilized when maintenance operational checks require the aircraft to be taxied higher-than-normal taxi speeds. (paragraph 1)

What aircraft can conduct high-speed taxi checks?

Only aircraft which are considered completely airworthy will conduct HST checks. (paragraph 1)

What must FCF pilots do before stepping for a high-speed taxi check?

Prior to stepping, the FCF pilot(s) will compute the takeoff landing data (TOLD) for the highest speed expected. The FCF pilot(s) will review MDS flight manual abort procedures and associated notes, warnings and cautions. (paragraph 1)

Who can conduct high-speed taxi checks?

HST checks will only be conducted by a current, qualified FCF pilots. (paragraph 1)

What must FCF pilots do before each FCF sortie or high-speed taxi check at JBSA-Randolph?

Ensure the 12 OG FCF read file is reviewed and signed off prior to each FCF sortie or HST check. (paragraph 1)

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