Reference Document for AF Form 2766
on Non-Destructive Aircraft Inspection
NOTE: This reference document serves two purposes:
1. It provides the rationale for the recommendations in the associated AF Form 2766.
2. It provides guidance for (a) the removal of a particular OH clinical exam from the
associated AF Form 2766 (e.g., exam required only when exceeding an exposure limit) or
(b) inclusion of a particular OH clinical exam by the Aerospace Medicine Council
Chairman in the Notes section of the associated AF Form 2766.
Personnel inspect airframes and aircraft components for structural weaknesses (cracks). This
is accomplished using one or more of the following methods: ultrasonics, eddy current, mag
particle, dye penetrant, or x-ray. Personnel are potentially exposed to both ionizing and nonionizing radiation, inspection penetrants, compressed gas/air, chemical hazards, and skin/eye
hazards.
Hazardous Noise
Evaluations
Selection for surveillance: All workers whose positions potentially will expose them to
hazardous noise that exceeds the limits contained in AFOSHSTD 48-20 (10 May 2013)
Table 3 (page 25).
Pre-placement: Audiogram
Periodic: Audiogram
Frequency: At least annually
Termination: Audiogram
Post-exposure emergency: N/A
Additional requirements: N/A
References
29 CFR 1910.95, AFOSH 48-20 (10 May 2013); DODI 6055.12
Notes
(1) A reference audiogram is required within 30 days of the start of any job with a noise
hazard exposure that exceeds the limits contained in AFOSHSTD 48-20 (10 May 2013)
Table 3 (page 25). Periodic (at least annual) and termination of exposure audiograms
are required for all workers with hazardous noise exposure risk. The audiograms should
be accomplished in strict compliance with AFOSHSTD 48-20 2.12.7.
(2) Air Reserve Component (ARC) members with fewer than 30 days per year of noise
exposure do not require annual audiograms but are required to comply with all other
aspects of the Hearing Conservation Program (HCP).
(3) If a periodic audiogram suggests a Significant Threshold Shift in an ARC member, initial
follow-up audiograms must be completed within 60 days of the annual audiogram. If no
follow-up audiograms have been completed within 60 days after the annual audiogram,
the Threshold Shift must be considered a Permanent Threshold Shift (PTS) until further
follow-up is completed.
Respiratory Hazards
Evaluations
Selection for surveillance: Workers whose positions may expose them to respiratory
hazards, including noxious fumes, products of combustion, or particulate or non-particulate
respiratory irritants.
Pre-placement: (1) OSHA respiratory questionnaire and respiratory fit test, (2) medical
examination (see Note 1), and (3) spirometry (see Notes 2 and 3).
Periodic: Respirator fit test at least annually or upon request of an employee or
supervisor. The Respiratory Protection Standard does not require periodic completion of
the respiratory questionnaire or medical examination. However, best practice suggests a
review of the respiratory questionnaire during the annual medical surveillance evaluation by
the health care provider and appropriate medical evaluation if indicated by that review.
Frequency: Annual respirator fit test
Termination: N/A
Post-exposure emergency: N/A
Additional requirements: N/A
References
29 CFR 1910.134; DODI 6055.05-M, C4.13 Respirator Clearance; AFOSH Standard 48-137
Notes
(1) Based on worker responses to the respiratory questionnaire, a medical evaluation may
be required either if the criteria in 29 CFR 1910.134 (e)(3) are met or at the discretion of
the responsible PLHCP. Additional criteria may be established locally.
(2) Medical examination is not required as part of the OSHA Respiratory Protection
Standard but may be conducted as a local option.
(3) Annual spirometry is not a requirement of the OSHA Respiratory Protection Standard but
may be conducted as a local option. Spirometry is required, independent of 29 CFR
1910.134, for surveillance for pulmonary function changes related to exposure to
products of combustion. Spirometry may also be of value in routine surveillance to
identity early changes in respiratory function prior to onset of symptoms.
Vision Requirements and Examinations
Evaluations
Pre-placement: Near vision IAW T.O. 33B-1-1 Section 1.2.4.1; color vision IAW T.O. 33B1-1 Section 1.2.4.2; complete optometric/ophthalmologic examination IAW AFOSHSTD 48139 (10 Dec 1999), Section 2.5.
Periodic: Near vision IAW T.O. 33B-1-1 Section 1.2.4.1
Frequency: Annually
Termination: Complete optometric/ophthalmologic examination IAW AFOSHSTD 48-139
(10 Dec 1999), Section 2.5.
Post-exposure emergency: Complete optometric/ophthalmologic examination IAW
AFOSHSTD 48-139 (10 Dec 1999), Section 2.5.
Additional requirements: N/A
References
AFOSHSTD 48-139 (10 Dec 1999) Laser Radiation Protection Program; DOD 6055.05M,
Section C4.16.2; T.O. 33B-1-1 Non-destructive Inspection (15 Sept 2010), Section 1.2.4
Notes
(1) NDI personnel shall receive a near vision acuity test (Jaeger #1 at 12 inches) or (20/25
(Snellen) at 16” (42 cm) ±1” (2.54cm)) annually while certified. The near vision test is
required for only one eye, either natural or corrected.
(2) NDI personnel shall receive a color perception test prior to initial certification. Any limits
on color perception shall be placed in the individual’s training records.
Methyl Chloroform (1,1,1 Trichloroethane)
Evaluations
Selection for surveillance: Personnel exposed to methyl chloroform in the work
environment.
Pre-placement: Medical and occupational history with attention to previous exposure to
solvents, skin and respiratory irritants, and to the cardiovascular, hepatic, renal and
respiratory systems. Physical examination with attention to nervous, cardiovascular, and
respiratory systems and the skin. Laboratory: Liver profile and urinalysis with microscopic
examination. ECG.
Periodic: Medical and occupational history with attention to previous exposure to solvents,
skin and respiratory irritants, and to the cardiovascular, hepatic, renal and respiratory
systems. Physical examination with attention to nervous, cardiovascular, and respiratory
systems and the skin. Laboratory: AST.
Frequency: At least annually
Termination: N/A
Post-exposure emergency: N/A
Additional requirements: N/A
References
AFOSHSTD 91-110 Non-destructive Inspection, Section 2.5.2; NMCPHC TM OM 6260 pages
195-197; NIOSH Occupational Health Guideline: Methyl Chloroform (1,1,1 Trichloroethane)
September 1978; NIOSH Pocket Guide to Chemical Hazards: 1,1,1 Trichloroethane (Sept
2005); NIOSH Criteria for a Recommended Standard: Methyl Chloroform
Notes
N/A