§31.12. Proof of compliance.
14 C.F.R. § 31.12
Each requirement of this subpart must be met at each weight within the range of loading conditions for which certification is requested. This must be shown by—
Tests upon a balloon of the type for which certification is requested or by calculations based on, and equal in accuracy to, the results of testing; and
Systematic investigation of each weight if compliance cannot be reasonably inferred from the weights investigated.
Except as provided in § 31.17(b), allowable weight tolerances during flight testing are + 5 percent and −10 percent.
Notes, amendments, and revision history
Amendments
[Amdt. 31-4, 45 FR 60179, Sept. 11, 1980]
Authority
Authority: 49 U.S.C. 106(g), 40113, 44701-44702, 44704.
Source
Source: Docket No. 1437, 29 FR 8258, July 1, 1964, as amended by Amdt. 31-1, 29 FR 14563, Oct. 24, 1964, unless otherwise noted.
Amendments
[Amdt. 31-4, 45 FR 60179, Sept. 11, 1980]